diff --git a/features/namespace.yml b/features/namespace.yml
new file mode 100644
index 00000000000..669d2806cc1
--- /dev/null
+++ b/features/namespace.yml
@@ -0,0 +1,15 @@
+name: "`@namespace`"
+description: The `@namespace` CSS rule sets a default namespace or namespace prefix. Namespace prefixes allow CSS selectors to distinguish elements with the same name but different document types, such as the HTML `<a>` element and the SVG `<a>` element.
+spec: https://drafts.csswg.org/css-namespaces-3/#declaration
+caniuse: css-namespaces
+group:
+  - css
+  - selectors
+status:
+  compute_from: css.at-rules.namespace
+compat_features:
+  - css.at-rules.namespace
+  - css.selectors.namespace
+  - api.CSSNamespaceRule
+  - api.CSSNamespaceRule.namespaceURI
+  - api.CSSNamespaceRule.prefix
diff --git a/features/namespace.yml.dist b/features/namespace.yml.dist
new file mode 100644
index 00000000000..31348668407
--- /dev/null
+++ b/features/namespace.yml.dist
@@ -0,0 +1,69 @@
+# Generated from: namespace.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "1"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "1"
+    safari_ios: "1"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "1"
+  #   safari_ios: "1"
+  - css.at-rules.namespace
+
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "3"
+  #   safari_ios: "1"
+  - css.selectors.namespace
+
+  # baseline: high
+  # baseline_low_date: 2017-04-19
+  # baseline_high_date: 2019-10-19
+  # support:
+  #   chrome: "47"
+  #   chrome_android: "47"
+  #   edge: "12"
+  #   firefox: "53"
+  #   firefox_android: "53"
+  #   safari: "10.1"
+  #   safari_ios: "10.3"
+  - api.CSSNamespaceRule
+
+  # baseline: high
+  # baseline_low_date: 2018-03-13
+  # baseline_high_date: 2020-09-13
+  # support:
+  #   chrome: "47"
+  #   chrome_android: "47"
+  #   edge: "12"
+  #   firefox: "59"
+  #   firefox_android: "59"
+  #   safari: "10.1"
+  #   safari_ios: "10.3"
+  - api.CSSNamespaceRule.namespaceURI
+  - api.CSSNamespaceRule.prefix