diff --git a/features/opacity-svg.yml b/features/opacity-svg.yml
new file mode 100644
index 00000000000..827084e7889
--- /dev/null
+++ b/features/opacity-svg.yml
@@ -0,0 +1,9 @@
+name: Opacity (SVG)
+description: The `fill-opacity`, and `stroke-opacity` SVG attributes and CSS properties control the transparency of a stroke or fill of an SVG element.
+spec: https://svgwg.org/svg2-draft/render.html#ObjectAndGroupOpacityProperties
+group: svg
+compat_features:
+  - css.properties.fill-opacity
+  - css.properties.stroke-opacity
+  - svg.global_attributes.fill-opacity
+  - svg.global_attributes.stroke-opacity
diff --git a/features/opacity-svg.yml.dist b/features/opacity-svg.yml.dist
new file mode 100644
index 00000000000..1184602e240
--- /dev/null
+++ b/features/opacity-svg.yml.dist
@@ -0,0 +1,20 @@
+# Generated from: opacity-svg.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2020-07-28
+  baseline_high_date: 2023-01-28
+  support:
+    chrome: ≤80
+    chrome_android: "80"
+    edge: ≤80
+    firefox: ≤72
+    firefox_android: "79"
+    safari: ≤13.1
+    safari_ios: ≤13.4
+compat_features:
+  - css.properties.fill-opacity
+  - css.properties.stroke-opacity
+  - svg.global_attributes.fill-opacity
+  - svg.global_attributes.stroke-opacity
diff --git a/features/opacity.yml b/features/opacity.yml
index 6bb8a05b3bf..a77e67201af 100644
--- a/features/opacity.yml
+++ b/features/opacity.yml
@@ -7,3 +7,4 @@ status:
 compat_features:
   - css.properties.opacity
   - css.properties.opacity.percentages
+  - svg.global_attributes.opacity
diff --git a/features/opacity.yml.dist b/features/opacity.yml.dist
index ffaba3b3225..6310e605f06 100644
--- a/features/opacity.yml.dist
+++ b/features/opacity.yml.dist
@@ -27,6 +27,7 @@ compat_features:
   #   safari: "2"
   #   safari_ios: "1"
   - css.properties.opacity
+  - svg.global_attributes.opacity
 
   # baseline: high
   # baseline_low_date: 2020-07-28
diff --git a/groups/svg.yml b/groups/svg.yml
new file mode 100644
index 00000000000..8ada2988954
--- /dev/null
+++ b/groups/svg.yml
@@ -0,0 +1,5 @@
+# SVG (Scalable Vector Graphics) is a language for describing two-dimensional
+# graphics.
+#
+# spec: https://svgwg.org/svg2-draft/
+name: SVG