diff --git a/.changeset/polite-timers-tell.md b/.changeset/polite-timers-tell.md
new file mode 100644
index 000000000000..b98a89c95f07
--- /dev/null
+++ b/.changeset/polite-timers-tell.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: check options namespace for top level `svelte:element`s
diff --git a/packages/svelte/src/compiler/phases/2-analyze/visitors/SvelteElement.js b/packages/svelte/src/compiler/phases/2-analyze/visitors/SvelteElement.js
index 02717bdfd996..c0b9f95fc2df 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/visitors/SvelteElement.js
+++ b/packages/svelte/src/compiler/phases/2-analyze/visitors/SvelteElement.js
@@ -35,9 +35,10 @@ export function SvelteElement(node, context) {
ancestor.type === 'Component' ||
ancestor.type === 'SvelteComponent' ||
ancestor.type === 'SvelteFragment' ||
- ancestor.type === 'SnippetBlock'
+ ancestor.type === 'SnippetBlock' ||
+ i === 0
) {
- // Inside a slot or a snippet -> this resets the namespace, so assume the component namespace
+ // Root element, or inside a slot or a snippet -> this resets the namespace, so assume the component namespace
node.metadata.svg = context.state.options.namespace === 'svg';
node.metadata.mathml = context.state.options.namespace === 'mathml';
break;
diff --git a/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/_config.js b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/_config.js
new file mode 100644
index 000000000000..a18ad5dc1059
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/_config.js
@@ -0,0 +1,12 @@
+import { test } from '../../test';
+
+export default test({
+ html: '',
+
+ test({ assert, target }) {
+ const svg = target.querySelector('svg');
+ const rect = target.querySelector('rect');
+ assert.equal(svg?.namespaceURI, 'http://www.w3.org/2000/svg');
+ assert.equal(rect?.namespaceURI, 'http://www.w3.org/2000/svg');
+ }
+});
diff --git a/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/main.svelte b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/main.svelte
new file mode 100644
index 000000000000..0cc8a2a1f3f6
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/main.svelte
@@ -0,0 +1,7 @@
+
+
+
diff --git a/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/rect.svelte b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/rect.svelte
new file mode 100644
index 000000000000..e7472917148c
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/dynamic-element-svg-options-namespace/rect.svelte
@@ -0,0 +1,7 @@
+
+
+
+
+