diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index df84e1071..2f6f283cd 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -103,6 +103,7 @@ Completions
   - ``az`` (:issue:`8141`)
   - ``qmk`` (:issue:`8180`)
   - ``cpupower``
+  - ``dart``
 
 - Improvements to many completions, especially for ``git`` aliases (:issue:`8129`) and subcommands (:issue:`8134`).
 - The ``fish_is_nth_token`` function, which is particularly useful in completions for identifying the token number within the command line, replaces various internal functions to do the same (:issue:`8008`).
diff --git a/share/completions/dart.fish b/share/completions/dart.fish
new file mode 100644
index 000000000..d427b618e
--- /dev/null
+++ b/share/completions/dart.fish
@@ -0,0 +1,90 @@
+# global option
+complete -c dart -s h -l help -d "Print this usage information."
+complete -c dart -s v -l verbose -d "Show additional command output."
+complete -c dart -l version -d "Print the Dart SDK version."
+complete -c dart -l enable-analytics -d "Enable analytics."
+complete -c dart -l disable-analytics -d "Disable analytics."
+
+# commands
+complete -f -c dart -n '__fish_use_subcommand' -xa analyze -d "Analyze Dart code in a directory."
+complete -f -c dart -n '__fish_use_subcommand' -xa compile -d "Compile Dart to various formats."
+complete -f -c dart -n '__fish_use_subcommand' -xa create -d "Create a new Dart project."
+complete -f -c dart -n '__fish_use_subcommand' -xa fix -d "Apply automated fixes to Dart source code."
+complete -f -c dart -n '__fish_use_subcommand' -xa format -d "Idiomatically format Dart source code."
+complete -f -c dart -n '__fish_use_subcommand' -xa migrate -d "Perform null safety migration on a project."
+complete -f -c dart -n '__fish_use_subcommand' -xa pub -d "Work with packages."
+complete -f -c dart -n '__fish_use_subcommand' -xa run -d "Run a Dart program."
+complete -f -c dart -n '__fish_use_subcommand' -xa test -d "Run tests for a project."
+
+# analyze
+complete -c dart -n '__fish_seen_subcommand_from analyze' -l fatal-infos -d 'Treat info level issues as fatal.'
+complete -c dart -n '__fish_seen_subcommand_from analyze' -l fatal-warnings -d 'Treat warning level issues as fatal. (defaults to on)'
+complete -c dart -n '__fish_seen_subcommand_from analyze' -l no-fatal-warnings -d 'Treat warning level issues as fatal. (defaults to on)'
+
+# compile
+complete -c dart -n '__fish_seen_subcommand_from compile' -xa aot-snapshot -d 'Compile Dart to an AOT snapshot.'
+complete -c dart -n '__fish_seen_subcommand_from compile' -xa exe -d 'Compile Dart to a self-contained executable.'
+complete -c dart -n '__fish_seen_subcommand_from compile' -xa jit-snapshot -d 'Compile Dart to a JIT snapshot.'
+complete -c dart -n '__fish_seen_subcommand_from compile' -xa js -d 'Compile Dart to JavaScript.'
+complete -c dart -n '__fish_seen_subcommand_from compile' -xa kernel -d 'Compile Dart to a kernel snapshot.'
+
+# create
+complete -c dart -n '__fish_seen_subcommand_from create' -s t -l template -d 'The project template to use. [console-simple (default), console-full, package-simple, server-shelf, web-simple]'
+complete -c dart -n '__fish_seen_subcommand_from create' -l pub -d 'Whether to run \'pub get\' after the project has been created. (defaults to on)'
+complete -c dart -n '__fish_seen_subcommand_from create' -l no-pub -d 'Whether to run \'pub get\' after the project has been created. (defaults to on)'
+complete -c dart -n '__fish_seen_subcommand_from create' -l force -d 'Force project generation, even if the target directory already exists.'
+
+# fix
+complete -c dart -n '__fish_seen_subcommand_from fix' -s n -d 'Preview the proposed changes but make no changes.'
+complete -c dart -n '__fish_seen_subcommand_from fix' -l dry-run -d 'Preview the proposed changes but make no changes.'
+complete -c dart -n '__fish_seen_subcommand_from fix' -l apply -d 'Apply the proposed changes.'
+
+# format
+complete -c dart -n '__fish_seen_subcommand_from format' -s o -l output -d 'Set where to write formatted output.'
+complete -c dart -n '__fish_seen_subcommand_from format' -l set-exit-if-changed -d 'Return exit code 1 if there are any formatting changes.'
+complete -c dart -n '__fish_seen_subcommand_from format' -l fix -d 'Apply all style fixes.'
+complete -c dart -n '__fish_seen_subcommand_from format' -s l -l line-length -d 'Wrap lines longer than this. (defaults to "80")'
+
+# migrate
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l apply-changes -d 'Apply the proposed null safety changes to the files on disk.'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l ignore-errors -d 'Attempt to perform null safety analysis even if the project has analysis errors.'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l skip-import-check -d 'Go ahead with migration even if some imported files have not yet been migrated.'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l web-preview -d 'Show an interactive preview of the proposed null safety changes in a browser window. Use --no-web-preview to print proposed changes to the console. (defaults to on)'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l no-web-preview -d 'Show an interactive preview of the proposed null safety changes in a browser window. Use --no-web-preview to print proposed changes to the console. (defaults to on)'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l preview-hostname -d 'Run the preview server on the specified hostname. If not specified, "localhost" is used. Use "any" to specify IPv6.any or IPv4.any.(defaults to "localhost")'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l preview-port -d 'Run the preview server on the specified port. If not specified, dynamically allocate a port.'
+complete -c dart -n '__fish_seen_subcommand_from migrate' -l preview-port -d 'Output a machine-readable summary of migration changes.'
+
+# pub
+complete -c dart -n '__fish_seen_subcommand_from pub' -s C -l directory -d 'Run the subcommand in the directory<dir>.(defaults to ".")'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa add -d 'Add a dependency to pubspec.yaml.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa cache -d 'Work with the system cache.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa deps -d 'Print package dependencies.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa downgrade -d 'Downgrade the current package\'s dependencies to oldest versions.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa get -d 'Get the current package\'s dependencies.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa global -d 'Work with global packages.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa login -d 'Log into pub.dev.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa logout -d 'Log out of pub.dev.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa outdated -d 'Analyze your dependencies to find which ones can be upgraded.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa publish -d 'Publish the current package to pub.dartlang.org.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa remove -d 'Removes a dependency from the current package.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa upgrade -d 'Upgrade the current package\'s dependencies to latest versions.'
+complete -c dart -n '__fish_seen_subcommand_from pub' -xa ploader -d 'Manage uploaders for a package on pub.dartlang.org.'
+
+# run
+complete -c dart -n '__fish_seen_subcommand_from run' -l observe -d 'The observe flag is a convenience flag used to run a program with a set of common options useful for debugging.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l enable-vm-service -d 'Enables the VM service and listens on the specified port for connections (default port number is 8181, default bind address is localhost).'
+complete -c dart -n '__fish_seen_subcommand_from run' -l serve-devtools -d 'Serves an instance of the Dart DevTools debugger and profiler via the VM service at <vm-service-uri>/devtools.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-serve-devtools -d 'Serves an instance of the Dart DevTools debugger and profiler via the VM service at <vm-service-uri>/devtools.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l pause-isolates-on-exit -d 'Pause isolates on exit when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-pause-isolates-on-exit -d 'Pause isolates on exit when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l pause-isolates-on-unhandled-exceptions -d 'Pause isolates when an unhandled exception is encountered when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-pause-isolates-on-unhandled-exceptions -d 'Pause isolates when an unhandled exception is encountered when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l warn-on-pause-with-no-debugger -d 'Print a warning when an isolate pauses with no attached debugger when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-warn-on-pause-with-no-debugger -d 'Print a warning when an isolate pauses with no attached debugger when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l pause-isolates-on-start -d 'Pause isolates on start when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-pause-isolates-on-start -d 'Pause isolates on start when running with --enable-vm-service.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l enable-asserts -d 'Enable assert statements.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l no-enable-asserts -d 'Enable assert statements.'
+complete -c dart -n '__fish_seen_subcommand_from run' -l verbosity -d 'Sets the verbosity level of the compilation.'
+complete -c dart -n '__fish_seen_subcommand_from run' -s D -l define -d 'Define an environment declaration.'