diff --git a/.changeset/wild-cases-smile.md b/.changeset/wild-cases-smile.md
new file mode 100644
index 0000000000..ac5edacfd1
--- /dev/null
+++ b/.changeset/wild-cases-smile.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: recognise `aria-braillelabel` and `aria-brailleroledescription` as known ARIA attributes
diff --git a/packages/svelte/src/compiler/phases/2-analyze/visitors/shared/a11y/constants.js b/packages/svelte/src/compiler/phases/2-analyze/visitors/shared/a11y/constants.js
index 49099c2cb1..a2cd91333b 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/visitors/shared/a11y/constants.js
+++ b/packages/svelte/src/compiler/phases/2-analyze/visitors/shared/a11y/constants.js
@@ -4,7 +4,7 @@ import { roles as roles_map, elementRoles } from 'aria-query';
 import { AXObjects, elementAXObjects } from 'axobject-query';
 
 export const aria_attributes =
-	'activedescendant atomic autocomplete busy checked colcount colindex colspan controls current describedby description details disabled dropeffect errormessage expanded flowto grabbed haspopup hidden invalid keyshortcuts label labelledby level live modal multiline multiselectable orientation owns placeholder posinset pressed readonly relevant required roledescription rowcount rowindex rowspan selected setsize sort valuemax valuemin valuenow valuetext'.split(
+	'activedescendant atomic autocomplete braillelabel brailleroledescription busy checked colcount colindex colspan controls current describedby description details disabled dropeffect errormessage expanded flowto grabbed haspopup hidden invalid keyshortcuts label labelledby level live modal multiline multiselectable orientation owns placeholder posinset pressed readonly relevant required roledescription rowcount rowindex rowspan selected setsize sort valuemax valuemin valuenow valuetext'.split(
 		' '
 	);
 
diff --git a/packages/svelte/tests/validator/samples/a11y-aria-props/input.svelte b/packages/svelte/tests/validator/samples/a11y-aria-props/input.svelte
index 21c6327960..7e4bf7b3b3 100644
--- a/packages/svelte/tests/validator/samples/a11y-aria-props/input.svelte
+++ b/packages/svelte/tests/validator/samples/a11y-aria-props/input.svelte
@@ -1 +1,2 @@
-<input type="image" aria-labeledby="foo">
\ No newline at end of file
+<input type="image" aria-labeledby="foo">
+<div aria-braillelabel="foo" aria-brailleroledescription="bar"></div>