diff --git a/docs/support-matrix.md b/docs/support-matrix.md
index 970c6dc20..91f5b7189 100644
--- a/docs/support-matrix.md
+++ b/docs/support-matrix.md
@@ -44,6 +44,7 @@ Do not edit this page. Run `bazel run //tools/docs/support_matrix:update` to ref
 | Rust | none | `cargo` | `rust_bench` | `rust_fuzz_test` |
 | Scala | none | `maven` | `scala_bench` | `scala_fuzz_test` |
 | Svelte | none | `npm` | n/a | n/a |
+| Swift | `windows_x86_64`, `windows_arm64`: rules_dx registers no Swift toolchain for Windows | `swiftpm` | `swift_bench` | `swift_fuzz_test` |
 | TypeScript | none | `npm` | `typescript_bench` | `typescript_fuzz_test` |
 | Vue | none | `npm` | n/a | n/a |
 | Zig | none | none for `build.zig.zon`: the zig family does not fetch `.dependencies` | `zig_bench` | n/a |
@@ -108,6 +109,7 @@ Each cell names the tools `dx lint`, `dx format`, or `dx typecheck` runs, and th
 | Rust | `clippy`, `typos` | `rustfmt` | `rustc` | `rustdoc` | `llvm-cov` | `rustc dead_code` |
 | Scala | `scalafix`, `typos` | `scalafmt` | `scalac` | `scaladoc` | `jacoco` | `scalac -Wunused` |
 | Svelte | `eslint`, `typos` | `prettier` | `tsc` | `svelte2tsx` | no: js_test has no dx coverage wiring | `eslint @typescript-eslint/no-unused-vars` |
+| Swift | `swift_lint` (not on `macos_arm64`: SwiftLint is pinned only for Linux; `windows_x86_64`: SwiftLint is pinned only for Linux; `windows_arm64`: SwiftLint is pinned only for Linux), `typos` | `swift_format` (not on `macos_arm64`: swift-format is pinned only for Linux; `windows_x86_64`: swift-format is pinned only for Linux; `windows_arm64`: swift-format is pinned only for Linux) | no | no | no: no dx coverage wiring in the Swift rules | no |
 | TypeScript | `biome`, `eslint`, `typos` | `biome` | `tsc` | `typedoc` | `jest` | `eslint no-unused-vars` |
 | Vue | `eslint`, `typos` | `prettier` | `tsc` | `vue-component-meta` | no: js_test has no dx coverage wiring | `eslint @typescript-eslint/no-unused-vars` |
 | Zig | `typos`, `zig_ast_check` | `zig_fmt` | `zig` | no | `kcov` (kcov runs on Linux only) | `zig ast-check unused local, unused parameter` |
diff --git a/tools/docs/support_matrix/facts_tests.bzl b/tools/docs/support_matrix/facts_tests.bzl
index 2c5063050..962b445f7 100644
--- a/tools/docs/support_matrix/facts_tests.bzl
+++ b/tools/docs/support_matrix/facts_tests.bzl
@@ -78,7 +78,7 @@ def _not_applicable_problems(facts):
     ]
 
 # Rows with a stated reason that do not yet declare an unsupported constraint_value; shrink as #6175 lands them.
-_PENDING_UNSUPPORTED = ["appimage", "apple", "cc_gcc", "cc_msvc", "cuda", "fortran", "ocaml", "perl"]
+_PENDING_UNSUPPORTED = ["appimage", "apple", "cc_gcc", "cc_msvc", "cuda", "fortran", "ocaml", "perl", "swift"]
 
 def support_matrix_facts_tests(name):
     """Declares the support matrix facts schema test."""
diff --git a/tools/docs/support_matrix/languages.bzl b/tools/docs/support_matrix/languages.bzl
index 2f917d91b..7452ee389 100644
--- a/tools/docs/support_matrix/languages.bzl
+++ b/tools/docs/support_matrix/languages.bzl
@@ -69,6 +69,7 @@ BENCH = {
     "python": "python_bench",
     "rust": "rust_bench",
     "scala": "scala_bench",
+    "swift": "swift_bench",
     "typescript": "typescript_bench",
     "zig": "zig_bench",
 }
@@ -83,6 +84,7 @@ FUZZ = {
     "python": "python_fuzz_test",
     "rust": "rust_fuzz_test",
     "scala": "scala_fuzz_test",
+    "swift": "swift_fuzz_test",
     "typescript": "typescript_fuzz_test",
 }
 
@@ -118,6 +120,7 @@ DEPENDENCIES = {
     "rust": "`cargo`",
     "scala": "`maven`",
     "svelte": "`npm`",
+    "swift": "`swiftpm`",
     "typescript": "`npm`",
     "vue": "`npm`",
     "zig": "none for `build.zig.zon`: the zig family does not fetch `.dependencies`",
@@ -155,6 +158,7 @@ DOC_TOOLS = {
     "rust": {"tool": "rustdoc", "shard": "docs_site"},
     "scala": {"tool": "scaladoc", "shard": "scala_doc_shard"},
     "svelte": {"tool": "svelte2tsx", "shard": "svelte_doc_shard"},
+    "swift": None,
     "typescript": {"tool": "typedoc", "shard": "typescript_doc_shard"},
     "vue": {"tool": "vue-component-meta", "shard": "vue_doc_shard"},
     "zig": None,
@@ -256,6 +260,7 @@ NO_COVERAGE = {
     "mdx": "js_test has no dx coverage wiring",
     "qt": "no dx coverage wiring in the Qt rules",
     "svelte": "js_test has no dx coverage wiring",
+    "swift": "no dx coverage wiring in the Swift rules",
     "vue": "js_test has no dx coverage wiring",
     "wasi": "the WASI guest test has no coverage collector",
 }
@@ -397,6 +402,7 @@ ROWS = [
     },
     {"ci_tests": _hello("scala", "@rules_dx_jvm"), "consumer_tests": ["//tools/testing/hermetic:scala_scalafix"], "name": "scala", "section": "languages", "title": "Scala"},
     {"ci_tests": _hello("svelte", "@rules_dx_js"), "consumer_tests": _starter_consumers("svelte"), "name": "svelte", "section": "languages", "title": "Svelte"},
+    {"ci_tests": ["//swift/tests/fixtures/hello:hello_output_test"], "name": "swift", "section": "languages", "title": "Swift"},
     {"ci_tests": _hello("typescript", "@rules_dx_js"), "consumer_tests": _starter_consumers("typescript"), "name": "typescript", "section": "languages", "title": "TypeScript"},
     {"ci_tests": _hello("vue", "@rules_dx_js"), "consumer_tests": _starter_consumers("vue"), "name": "vue", "section": "languages", "title": "Vue"},
     {"ci_tests": ["@rules_dx_zig//zig/tests/fixtures/hello:greet_test"], "consumer_tests": ["//tools/testing/hermetic:zig"] + _starter_consumers("zig"), "name": "zig", "section": "languages", "title": "Zig"},
@@ -503,7 +509,6 @@ ROWS = [
 
 NOT_LANGUAGES = [
     "containers",
-    "swift",
     "bcr_test_module",
     "ci",
     "cli",
@@ -598,6 +603,10 @@ PLATFORM_NOT_APPLICABLE = {
     "php": {
         "windows_arm64": "static-php-cli and windows.php.net ship no Windows arm64 PHP 8.5 build",
     },
+    "swift": {
+        "windows_arm64": "rules_dx registers no Swift toolchain for Windows",
+        "windows_x86_64": "rules_dx registers no Swift toolchain for Windows",
+    },
 }
 
 def _build_file(label):