diff --git a/crates/ide-assists/src/assist_config.rs b/crates/ide-assists/src/assist_config.rs
index 57ced8d8534b..afb4c8ba3a2d 100644
--- a/crates/ide-assists/src/assist_config.rs
+++ b/crates/ide-assists/src/assist_config.rs
@@ -5,6 +5,7 @@
 //! assists if we are allowed to.
 
 use hir::ImportPathConfig;
+use ide_db::rename::RenameConfig;
 use ide_db::{SnippetCap, assists::ExprFillDefaultMode, imports::insert_use::InsertUseConfig};
 
 use crate::AssistKind;
@@ -23,6 +24,7 @@ pub struct AssistConfig {
     pub code_action_grouping: bool,
     pub expr_fill_default: ExprFillDefaultMode,
     pub prefer_self_ty: bool,
+    pub rename_config: RenameConfig,
 }
 
 impl AssistConfig {
diff --git a/crates/ide-assists/src/handlers/remove_underscore.rs b/crates/ide-assists/src/handlers/remove_underscore.rs
index a8e27416d5ce..96a5311f2920 100644
--- a/crates/ide-assists/src/handlers/remove_underscore.rs
+++ b/crates/ide-assists/src/handlers/remove_underscore.rs
@@ -62,7 +62,9 @@ pub(crate) fn remove_underscore(acc: &mut Assists, ctx: &AssistContext<'_>) -> O
         "Remove underscore from a used variable",
         text_range,
         |builder| {
-            let changes = def.rename(&ctx.sema, new_name, RenameDefinition::Yes).unwrap();
+            let changes = def
+                .rename(&ctx.sema, &ctx.config.rename_config, new_name, RenameDefinition::Yes)
+                .unwrap();
             builder.source_change = changes;
         },
     )
diff --git a/crates/ide-assists/src/tests.rs b/crates/ide-assists/src/tests.rs
index cda2ad43278a..c86a86ecddfb 100644
--- a/crates/ide-assists/src/tests.rs
+++ b/crates/ide-assists/src/tests.rs
@@ -7,6 +7,7 @@ use ide_db::{
     assists::ExprFillDefaultMode,
     base_db::SourceDatabase,
     imports::insert_use::{ImportGranularity, InsertUseConfig},
+    rename::RenameConfig,
     source_change::FileSystemEdit,
 };
 use stdx::{format_to, trim_indent};
@@ -38,6 +39,7 @@ pub(crate) const TEST_CONFIG: AssistConfig = AssistConfig {
     code_action_grouping: true,
     expr_fill_default: ExprFillDefaultMode::Todo,
     prefer_self_ty: false,
+    rename_config: RenameConfig { show_conflicts: true },
 };
 
 pub(crate) const TEST_CONFIG_NO_GROUPING: AssistConfig = AssistConfig {
@@ -59,6 +61,7 @@ pub(crate) const TEST_CONFIG_NO_GROUPING: AssistConfig = AssistConfig {
     code_action_grouping: false,
     expr_fill_default: ExprFillDefaultMode::Todo,
     prefer_self_ty: false,
+    rename_config: RenameConfig { show_conflicts: true },
 };
 
 pub(crate) const TEST_CONFIG_NO_SNIPPET_CAP: AssistConfig = AssistConfig {
@@ -80,6 +83,7 @@ pub(crate) const TEST_CONFIG_NO_SNIPPET_CAP: AssistConfig = AssistConfig {
     code_action_grouping: true,
     expr_fill_default: ExprFillDefaultMode::Todo,
     prefer_self_ty: false,
+    rename_config: RenameConfig { show_conflicts: true },
 };
 
 pub(crate) const TEST_CONFIG_IMPORT_ONE: AssistConfig = AssistConfig {
@@ -101,6 +105,7 @@ pub(crate) const TEST_CONFIG_IMPORT_ONE: AssistConfig = AssistConfig {
     code_action_grouping: true,
     expr_fill_default: ExprFillDefaultMode::Todo,
     prefer_self_ty: false,
+    rename_config: RenameConfig { show_conflicts: true },
 };
 
 pub(crate) fn with_single_file(text: &str) -> (RootDatabase, EditionedFileId) {
diff --git a/crates/ide-db/src/rename.rs b/crates/ide-db/src/rename.rs
index 4e737e27f050..b414c5bbf922 100644
--- a/crates/ide-db/src/rename.rs
+++ b/crates/ide-db/src/rename.rs
@@ -45,6 +45,11 @@ use crate::{
     traits::convert_to_def_in_trait,
 };
 
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct RenameConfig {
+    pub show_conflicts: bool,
+}
+
 pub type Result<T, E = RenameError> = std::result::Result<T, E>;
 
 #[derive(Debug)]
@@ -79,6 +84,7 @@ impl Definition {
     pub fn rename(
         &self,
         sema: &Semantics<'_, RootDatabase>,
+        config: &RenameConfig,
         new_name: &str,
         rename_definition: RenameDefinition,
     ) -> Result<SourceChange> {
@@ -109,10 +115,15 @@ impl Definition {
                 bail!("Cannot rename a builtin attr.")
             }
             Definition::SelfType(_) => bail!("Cannot rename `Self`"),
-            Definition::Macro(mac) => {
-                rename_reference(sema, Definition::Macro(mac), new_name, rename_definition, edition)
-            }
-            def => rename_reference(sema, def, new_name, rename_definition, edition),
+            Definition::Macro(mac) => rename_reference(
+                sema,
+                config,
+                Definition::Macro(mac),
+                new_name,
+                rename_definition,
+                edition,
+            ),
+            def => rename_reference(sema, config, def, new_name, rename_definition, edition),
         }
     }
 
@@ -335,6 +346,7 @@ fn rename_mod(
 
 fn rename_reference(
     sema: &Semantics<'_, RootDatabase>,
+    config: &RenameConfig,
     def: Definition,
     new_name: &str,
     rename_definition: RenameDefinition,
@@ -397,7 +409,8 @@ fn rename_reference(
     if rename_definition == RenameDefinition::Yes {
         // This needs to come after the references edits, because we change the annotation of existing edits
         // if a conflict is detected.
-        let (file_id, edit) = source_edit_from_def(sema, def, &new_name, &mut source_change)?;
+        let (file_id, edit) =
+            source_edit_from_def(sema, config, def, &new_name, &mut source_change)?;
         source_change.insert_source_edit(file_id, edit);
     }
     Ok(source_change)
@@ -555,6 +568,7 @@ fn source_edit_from_name_ref(
 
 fn source_edit_from_def(
     sema: &Semantics<'_, RootDatabase>,
+    config: &RenameConfig,
     def: Definition,
     new_name: &Name,
     source_change: &mut SourceChange,
@@ -563,21 +577,22 @@ fn source_edit_from_def(
     if let Definition::Local(local) = def {
         let mut file_id = None;
 
-        let conflict_annotation = if !sema.rename_conflicts(&local, new_name).is_empty() {
-            Some(
-                source_change.insert_annotation(ChangeAnnotation {
-                    label: "This rename will change the program's meaning".to_owned(),
-                    needs_confirmation: true,
-                    description: Some(
-                        "Some variable(s) will shadow the renamed variable \
+        let conflict_annotation =
+            if config.show_conflicts && !sema.rename_conflicts(&local, new_name).is_empty() {
+                Some(
+                    source_change.insert_annotation(ChangeAnnotation {
+                        label: "This rename will change the program's meaning".to_owned(),
+                        needs_confirmation: true,
+                        description: Some(
+                            "Some variable(s) will shadow the renamed variable \
                         or be shadowed by it if the rename is performed"
-                            .to_owned(),
-                    ),
-                }),
-            )
-        } else {
-            None
-        };
+                                .to_owned(),
+                        ),
+                    }),
+                )
+            } else {
+                None
+            };
 
         for source in local.sources(sema.db) {
             let source = match source.source.clone().original_ast_node_rooted(sema.db) {
diff --git a/crates/ide-diagnostics/src/handlers/incorrect_case.rs b/crates/ide-diagnostics/src/handlers/incorrect_case.rs
index 519ff192799d..e3495595bacc 100644
--- a/crates/ide-diagnostics/src/handlers/incorrect_case.rs
+++ b/crates/ide-diagnostics/src/handlers/incorrect_case.rs
@@ -44,7 +44,12 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::IncorrectCase) -> Option<Vec<Ass
     let label = format!("Rename to {}", d.suggested_text);
     let mut res = unresolved_fix("change_case", &label, frange.range);
     if ctx.resolve.should_resolve(&res.id) {
-        let source_change = def.rename(&ctx.sema, &d.suggested_text, RenameDefinition::Yes);
+        let source_change = def.rename(
+            &ctx.sema,
+            &ctx.config.rename_config,
+            &d.suggested_text,
+            RenameDefinition::Yes,
+        );
         res.source_change = Some(source_change.ok().unwrap_or_default());
     }
 
diff --git a/crates/ide-diagnostics/src/lib.rs b/crates/ide-diagnostics/src/lib.rs
index 72bd66d1c8bb..4fc66724d46d 100644
--- a/crates/ide-diagnostics/src/lib.rs
+++ b/crates/ide-diagnostics/src/lib.rs
@@ -96,6 +96,7 @@ use ide_db::{
     generated::lints::{CLIPPY_LINT_GROUPS, DEFAULT_LINT_GROUPS, DEFAULT_LINTS, Lint, LintGroup},
     imports::insert_use::InsertUseConfig,
     label::Label,
+    rename::RenameConfig,
     source_change::SourceChange,
     syntax_helpers::node_ext::parse_tt_as_comma_sep_paths,
 };
@@ -236,6 +237,7 @@ pub struct DiagnosticsConfig {
     pub prefer_absolute: bool,
     pub term_search_fuel: u64,
     pub term_search_borrowck: bool,
+    pub rename_config: RenameConfig,
 }
 
 impl DiagnosticsConfig {
@@ -264,6 +266,7 @@ impl DiagnosticsConfig {
             prefer_absolute: false,
             term_search_fuel: 400,
             term_search_borrowck: true,
+            rename_config: RenameConfig { show_conflicts: true },
         }
     }
 }
diff --git a/crates/ide/src/lib.rs b/crates/ide/src/lib.rs
index b3b8deb61fc0..e27dd59023a5 100644
--- a/crates/ide/src/lib.rs
+++ b/crates/ide/src/lib.rs
@@ -69,7 +69,9 @@ use ide_db::{
         CrateOrigin, CrateWorkspaceData, Env, FileSet, RootQueryDb, SourceDatabase, VfsPath,
         salsa::Cancelled,
     },
-    prime_caches, symbol_index,
+    prime_caches,
+    rename::RenameConfig,
+    symbol_index,
 };
 use syntax::SourceFile;
 use triomphe::Arc;
@@ -777,10 +779,11 @@ impl Analysis {
     /// name.
     pub fn rename(
         &self,
+        config: &RenameConfig,
         position: FilePosition,
         new_name: &str,
     ) -> Cancellable<Result<SourceChange, RenameError>> {
-        self.with_db(|db| rename::rename(db, position, new_name))
+        self.with_db(|db| rename::rename(db, config, position, new_name))
     }
 
     pub fn prepare_rename(
@@ -792,10 +795,11 @@ impl Analysis {
 
     pub fn will_rename_file(
         &self,
+        config: &RenameConfig,
         file_id: FileId,
         new_name_stem: &str,
     ) -> Cancellable<Option<SourceChange>> {
-        self.with_db(|db| rename::will_rename_file(db, file_id, new_name_stem))
+        self.with_db(|db| rename::will_rename_file(db, config, file_id, new_name_stem))
     }
 
     pub fn structural_search_replace(
diff --git a/crates/ide/src/rename.rs b/crates/ide/src/rename.rs
index fb84e8e6b474..27f83d5f6170 100644
--- a/crates/ide/src/rename.rs
+++ b/crates/ide/src/rename.rs
@@ -8,7 +8,10 @@ use hir::{AsAssocItem, InFile, Name, Semantics, sym};
 use ide_db::{
     FileId, FileRange, RootDatabase,
     defs::{Definition, NameClass, NameRefClass},
-    rename::{IdentifierKind, RenameDefinition, bail, format_err, source_edit_from_references},
+    rename::{
+        IdentifierKind, RenameConfig, RenameDefinition, bail, format_err,
+        source_edit_from_references,
+    },
     source_change::SourceChangeBuilder,
 };
 use itertools::Itertools;
@@ -78,6 +81,7 @@ pub(crate) fn prepare_rename(
 // ![Rename](https://user-images.githubusercontent.com/48062697/113065582-055aae80-91b1-11eb-8ade-2b58e6d81883.gif)
 pub(crate) fn rename(
     db: &RootDatabase,
+    config: &RenameConfig,
     position: FilePosition,
     new_name: &str,
 ) -> RenameResult<SourceChange> {
@@ -145,7 +149,7 @@ pub(crate) fn rename(
                         return rename_to_self(&sema, local);
                     }
                 }
-                def.rename(&sema, new_name.as_str(), rename_def)
+                def.rename(&sema, config, new_name.as_str(), rename_def)
             })
             .collect(),
     };
@@ -159,13 +163,14 @@ pub(crate) fn rename(
 /// Called by the client when it is about to rename a file.
 pub(crate) fn will_rename_file(
     db: &RootDatabase,
+    config: &RenameConfig,
     file_id: FileId,
     new_name_stem: &str,
 ) -> Option<SourceChange> {
     let sema = Semantics::new(db);
     let module = sema.file_to_module_def(file_id)?;
     let def = Definition::Module(module);
-    let mut change = def.rename(&sema, new_name_stem, RenameDefinition::Yes).ok()?;
+    let mut change = def.rename(&sema, config, new_name_stem, RenameDefinition::Yes).ok()?;
     change.file_system_edits.clear();
     Some(change)
 }
@@ -493,6 +498,7 @@ fn text_edit_from_self_param(self_param: &ast::SelfParam, new_name: String) -> O
 #[cfg(test)]
 mod tests {
     use expect_test::{Expect, expect};
+    use ide_db::rename::RenameConfig;
     use ide_db::source_change::SourceChange;
     use ide_db::text_edit::TextEdit;
     use itertools::Itertools;
@@ -503,6 +509,8 @@ mod tests {
 
     use super::{RangeInfo, RenameError};
 
+    const TEST_CONFIG: RenameConfig = RenameConfig { show_conflicts: true };
+
     #[track_caller]
     fn check(
         new_name: &str,
@@ -517,7 +525,7 @@ mod tests {
             }
         }
         let rename_result = analysis
-            .rename(position, new_name)
+            .rename(&TEST_CONFIG, position, new_name)
             .unwrap_or_else(|err| panic!("Rename to '{new_name}' was cancelled: {err}"));
         match rename_result {
             Ok(source_change) => {
@@ -549,7 +557,7 @@ mod tests {
     #[track_caller]
     fn check_conflicts(new_name: &str, #[rust_analyzer::rust_fixture] ra_fixture: &str) {
         let (analysis, position, conflicts) = fixture::annotations(ra_fixture);
-        let source_change = analysis.rename(position, new_name).unwrap().unwrap();
+        let source_change = analysis.rename(&TEST_CONFIG, position, new_name).unwrap().unwrap();
         let expected_conflicts = conflicts
             .into_iter()
             .map(|(file_range, _)| (file_range.file_id, file_range.range))
@@ -576,8 +584,10 @@ mod tests {
         expect: Expect,
     ) {
         let (analysis, position) = fixture::position(ra_fixture);
-        let source_change =
-            analysis.rename(position, new_name).unwrap().expect("Expect returned a RenameError");
+        let source_change = analysis
+            .rename(&TEST_CONFIG, position, new_name)
+            .unwrap()
+            .expect("Expect returned a RenameError");
         expect.assert_eq(&filter_expect(source_change))
     }
 
@@ -588,7 +598,7 @@ mod tests {
     ) {
         let (analysis, position) = fixture::position(ra_fixture);
         let source_change = analysis
-            .will_rename_file(position.file_id, new_name)
+            .will_rename_file(&TEST_CONFIG, position.file_id, new_name)
             .unwrap()
             .expect("Expect returned a RenameError");
         expect.assert_eq(&filter_expect(source_change))
diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index 0ee01982fea2..1dd4d9312fad 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -26,6 +26,7 @@ use ide::{
 use ide_db::{
     EditionedFileId, LineIndexDatabase, SnippetCap,
     base_db::{SourceDatabase, salsa::Database},
+    rename::RenameConfig,
 };
 use itertools::Itertools;
 use load_cargo::{LoadCargoConfig, ProcMacroServerChoice, load_workspace};
@@ -1140,6 +1141,7 @@ impl flags::AnalysisStats {
                     style_lints: false,
                     term_search_fuel: 400,
                     term_search_borrowck: true,
+                    rename_config: RenameConfig { show_conflicts: true },
                 },
                 ide::AssistResolveStrategy::All,
                 analysis.editioned_file_id_to_vfs(file_id),
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 51d4c29aa74e..7f31a2eb522d 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -18,6 +18,7 @@ use ide_db::{
     SnippetCap,
     assists::ExprFillDefaultMode,
     imports::insert_use::{ImportGranularity, InsertUseConfig, PrefixKind},
+    rename::RenameConfig,
 };
 use itertools::{Either, Itertools};
 use paths::{Utf8Path, Utf8PathBuf};
@@ -553,6 +554,9 @@ config_data! {
         imports_prefix: ImportPrefixDef               = ImportPrefixDef::ByCrate,
         /// Whether to prefix external (including std, core) crate imports with `::`. e.g. "use ::std::io::Read;".
         imports_prefixExternPrelude: bool = false,
+
+        /// Whether to warn when a rename will cause conflicts (change the meaning of the code).
+        rename_showConflicts: bool = true,
     }
 }
 
@@ -1496,6 +1500,10 @@ impl Config {
 }
 
 impl Config {
+    pub fn rename(&self, source_root: Option<SourceRootId>) -> RenameConfig {
+        RenameConfig { show_conflicts: *self.rename_showConflicts(source_root) }
+    }
+
     pub fn assist(&self, source_root: Option<SourceRootId>) -> AssistConfig {
         AssistConfig {
             snippet_cap: self.snippet_cap(),
@@ -1514,6 +1522,7 @@ impl Config {
                 ExprFillDefaultDef::Underscore => ExprFillDefaultMode::Underscore,
             },
             prefer_self_ty: *self.assist_preferSelf(source_root),
+            rename_config: self.rename(source_root),
         }
     }
 
@@ -1608,6 +1617,7 @@ impl Config {
             style_lints: self.diagnostics_styleLints_enable(source_root).to_owned(),
             term_search_fuel: self.assist_termSearch_fuel(source_root).to_owned() as u64,
             term_search_borrowck: self.assist_termSearch_borrowcheck(source_root).to_owned(),
+            rename_config: self.rename(source_root),
         }
     }
 
diff --git a/crates/rust-analyzer/src/handlers/request.rs b/crates/rust-analyzer/src/handlers/request.rs
index a76a65220d3b..95ed42b16981 100644
--- a/crates/rust-analyzer/src/handlers/request.rs
+++ b/crates/rust-analyzer/src/handlers/request.rs
@@ -780,7 +780,11 @@ pub(crate) fn handle_will_rename_files(
             }
         })
         .filter_map(|(file_id, new_name)| {
-            snap.analysis.will_rename_file(file_id?, &new_name).ok()?
+            let file_id = file_id?;
+            let source_root = snap.analysis.source_root_id(file_id).ok();
+            snap.analysis
+                .will_rename_file(&snap.config.rename(source_root), file_id, &new_name)
+                .ok()?
         })
         .collect();
 
@@ -1316,8 +1320,11 @@ pub(crate) fn handle_rename(
     let _p = tracing::info_span!("handle_rename").entered();
     let position = try_default!(from_proto::file_position(&snap, params.text_document_position)?);
 
-    let mut change =
-        snap.analysis.rename(position, &params.new_name)?.map_err(to_proto::rename_error)?;
+    let source_root = snap.analysis.source_root_id(position.file_id).ok();
+    let mut change = snap
+        .analysis
+        .rename(&snap.config.rename(source_root), position, &params.new_name)?
+        .map_err(to_proto::rename_error)?;
 
     // this is kind of a hack to prevent double edits from happening when moving files
     // When a module gets renamed by renaming the mod declaration this causes the file to move
diff --git a/crates/rust-analyzer/src/integrated_benchmarks.rs b/crates/rust-analyzer/src/integrated_benchmarks.rs
index 84b7888258f8..4c4ae3eaf460 100644
--- a/crates/rust-analyzer/src/integrated_benchmarks.rs
+++ b/crates/rust-analyzer/src/integrated_benchmarks.rs
@@ -18,6 +18,7 @@ use ide::{
 use ide_db::{
     SnippetCap,
     imports::insert_use::{ImportGranularity, InsertUseConfig},
+    rename::RenameConfig,
 };
 use project_model::CargoConfig;
 use test_utils::project_root;
@@ -360,6 +361,7 @@ fn integrated_diagnostics_benchmark() {
         prefer_absolute: false,
         term_search_fuel: 400,
         term_search_borrowck: true,
+        rename_config: RenameConfig { show_conflicts: true },
     };
     host.analysis()
         .full_diagnostics(&diagnostics_config, ide::AssistResolveStrategy::None, file_id)
diff --git a/docs/book/src/configuration_generated.md b/docs/book/src/configuration_generated.md
index ebac26e1d60a..53bb5e0d6440 100644
--- a/docs/book/src/configuration_generated.md
+++ b/docs/book/src/configuration_generated.md
@@ -1258,6 +1258,13 @@ Default: `false`
 Exclude tests from find-all-references and call-hierarchy.
 
 
+## rust-analyzer.rename.showConflicts {#rename.showConflicts}
+
+Default: `true`
+
+Whether to warn when a rename will cause conflicts (change the meaning of the code).
+
+
 ## rust-analyzer.runnables.command {#runnables.command}
 
 Default: `null`
diff --git a/editors/code/package.json b/editors/code/package.json
index 3cb4c21ee1fb..a5c313c17508 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -2650,6 +2650,16 @@
                     }
                 }
             },
+            {
+                "title": "rename",
+                "properties": {
+                    "rust-analyzer.rename.showConflicts": {
+                        "markdownDescription": "Whether to warn when a rename will cause conflicts (change the meaning of the code).",
+                        "default": true,
+                        "type": "boolean"
+                    }
+                }
+            },
             {
                 "title": "runnables",
                 "properties": {