diff --git a/com.glyph.spellcheck-fa/main.js b/com.glyph.spellcheck-fa/main.js
new file mode 100644
index 0000000..c1f9fe2
--- /dev/null
+++ b/com.glyph.spellcheck-fa/main.js
@@ -0,0 +1,30 @@
+// Persian (Farsi) spell-check dictionary for Glyph.
+//
+// Registers فارسی in Settings → Editor → Spell Check. The Hunspell dictionary
+// is the Lilak project's, published as `dictionary-fa` (Apache-2.0) in the
+// wooorm/dictionaries collection, fetched from jsDelivr the first time the
+// language is selected; Glyph caches the parsed checker for the session.
+// Pinned to an exact version so the fetched content never changes under us.
+const DICTIONARY_BASE = "https://cdn.jsdelivr.net/npm/dictionary-fa@2.0.0";
+
+async function fetchText(url) {
+  const res = await fetch(url);
+  if (!res.ok) throw new Error(`Failed to load ${url}: ${res.status}`);
+  return res.text();
+}
+
+export default {
+  activate(ctx) {
+    ctx.spellcheck.registerDictionary({
+      language: "fa",
+      label: "فارسی (Persian)",
+      async load() {
+        const [aff, dic] = await Promise.all([
+          fetchText(`${DICTIONARY_BASE}/index.aff`),
+          fetchText(`${DICTIONARY_BASE}/index.dic`),
+        ]);
+        return { aff, dic };
+      },
+    });
+  },
+};
diff --git a/com.glyph.spellcheck-fa/manifest.json b/com.glyph.spellcheck-fa/manifest.json
new file mode 100644
index 0000000..05d00af
--- /dev/null
+++ b/com.glyph.spellcheck-fa/manifest.json
@@ -0,0 +1,8 @@
+{
+  "id": "com.glyph.spellcheck-fa",
+  "name": "Persian Spell Check",
+  "version": "1.0.0",
+  "apiVersion": "^1.3.0",
+  "description": "Persian (Farsi) spell-check dictionary: adds فارسی to Settings → Editor → Spell Check.",
+  "permissions": ["network:cdn.jsdelivr.net"]
+}
diff --git a/docs/api-reference.md b/docs/api-reference.md
index 66877af..dd05abe 100644
--- a/docs/api-reference.md
+++ b/docs/api-reference.md
@@ -100,6 +100,26 @@ ctx.exporters.register({
 });
 ```
 
+## `ctx.spellcheck` (API 1.3)
+
+Contribute a spell-check dictionary. The language appears (by `label`) in Settings → Editor → Spell Check → Language, and `load` runs only the first time the user selects it, so a fetched dictionary costs nothing until then. Registering a code Glyph already knows (including the built-in `en`) replaces it; unloading the plugin removes the language and drops any cached checker built from it.
+
+```ts
+ctx.spellcheck.registerDictionary({
+  language: "fa",
+  label: "فارسی (Persian)",
+  async load() {
+    // Return Hunspell sources as text, from wherever suits your plugin:
+    // inlined strings, or a fetch under a `network:` permission.
+    return { aff, dic };
+  },
+});
+```
+
+- `load` must resolve to `{ aff, dic }`: the two Hunspell files as UTF-8 text.
+- Main-context only; the sandbox does not expose `ctx.spellcheck` (the loader would have to cross the worker bridge).
+- A rejected `load` is not cached: the next time the user selects the language, Glyph calls it again.
+
 ## `ctx.markdown`
 
 Extend how documents render.
diff --git a/docs/plugin-catalog.md b/docs/plugin-catalog.md
index ea55a65..26e8fa4 100644
--- a/docs/plugin-catalog.md
+++ b/docs/plugin-catalog.md
@@ -15,3 +15,13 @@ The sample plugin: adds a status bar greeting and a "Hello Status: Say Hello" co
 - **Permissions**: none
 - **Sandbox**: no
 - **Source**: [com.glyph.hello-status/](../com.glyph.hello-status/) in this repo
+
+## Persian Spell Check
+
+`com.glyph.spellcheck-fa`
+
+Adds a Persian (Farsi) dictionary to the editor's spell check: once installed, فارسی appears under Settings → Editor → Spell Check → Language. The Hunspell dictionary comes from the [Lilak](https://github.com/b00f/lilak) project (Apache-2.0), published as [`dictionary-fa`](https://www.npmjs.com/package/dictionary-fa); it is fetched from jsDelivr the first time you select the language (about 1 MB, once per session), so the first activation needs a network connection. Requires Glyph plugin API 1.3 (spell-check dictionaries).
+
+- **Permissions**: `network:cdn.jsdelivr.net`
+- **Sandbox**: no (dictionary contributions are main-context only)
+- **Source**: [com.glyph.spellcheck-fa/](../com.glyph.spellcheck-fa/) in this repo
diff --git a/index.json b/index.json
index a28f7fa..2971217 100644
--- a/index.json
+++ b/index.json
@@ -8,6 +8,15 @@
       "version": "1.0.0",
       "apiVersion": "^1.0.0",
       "mainUrl": "https://raw.githubusercontent.com/glyph-md/plugins/main/com.glyph.hello-status/main.js"
+    },
+    {
+      "id": "com.glyph.spellcheck-fa",
+      "name": "Persian Spell Check",
+      "description": "Persian (Farsi) spell-check dictionary: adds فارسی to Settings → Editor → Spell Check.",
+      "version": "1.0.0",
+      "apiVersion": "^1.3.0",
+      "permissions": ["network:cdn.jsdelivr.net"],
+      "mainUrl": "https://raw.githubusercontent.com/glyph-md/plugins/main/com.glyph.spellcheck-fa/main.js"
     }
   ]
 }