diff --git a/codespell.cfg b/codespell.cfg
index e34631dee88..3debfca9156 100644
--- a/codespell.cfg
+++ b/codespell.cfg
@@ -7,6 +7,9 @@ builtin = clear,rare,informal,code
 # Ignore words listed in this file.
 ignore-words = codespell_whitelist.txt
 
+# Add ROS 2 custom dictionary file.
+dictionary = codespell_dictionary.txt
+
 # Skip checking files in this directory.
 # This folder is ignored for a couple of reasons.
 # *-Changelog.rst files are generated by commit history that could include some misspellings,
diff --git a/codespell_dictionary.txt b/codespell_dictionary.txt
new file mode 100644
index 00000000000..fe5d37686e1
--- /dev/null
+++ b/codespell_dictionary.txt
@@ -0,0 +1,20 @@
+amnet->ament
+amemt->ament
+amentt->ament
+catikn->catkin
+catin->catkin
+caktin->catkin
+colcno->colcon
+colcn->colcon
+colcom->colcon
+colconb->colcon
+colconm->colcon
+rosabg->rosbag
+rosbagg->rosbag
+rosbg->rosbag
+rosbg2->rosbag2
+rosbgz->rosbag
+rosdist->rosdistro
+rosdistr->rosdistro
+rosdistroy->rosdistro
+rosditro->rosdistro