diff --git a/packages/core/src/locales.ts b/packages/core/src/locales.ts
index b483c9f89f..1edc830874 100644
--- a/packages/core/src/locales.ts
+++ b/packages/core/src/locales.ts
@@ -4,6 +4,7 @@ import be from "./locales/be.js";
 import cs from "./locales/cs.js";
 import en from "./locales/en.js";
 import es from "./locales/es.js";
+import fa from "./locales/fa.js";
 import ko from "./locales/ko.js";
 import ota from "./locales/ota.js";
 import ru from "./locales/ru.js";
@@ -21,4 +22,4 @@ import fr from "./locales/fr.js";
 import ja from "./locales/ja.js";
 import pt from "./locales/pt.js";
 
-export { ar, az, be, cs, es, en, fi, fr, he, hu, id, it, ja, ko, ota, pl, pt, ru, tr, ua, vi, zhCN };
+export { ar, az, be, cs, es, en, fa, fi, fr, he, hu, id, it, ja, ko, ota, pl, pt, ru, tr, ua, vi, zhCN };
diff --git a/packages/core/src/locales/fa.ts b/packages/core/src/locales/fa.ts
new file mode 100644
index 0000000000..123ed11ca9
--- /dev/null
+++ b/packages/core/src/locales/fa.ts
@@ -0,0 +1,134 @@
+import type { $ZodStringFormats } from "../checks.js";
+import type * as errors from "../errors.js";
+import * as util from "../util.js";
+
+const Sizable: Record<string, { unit: string; verb: string }> = {
+  string: { unit: "کاراکتر", verb: "داشته باشد" },
+  file: { unit: "بایت", verb: "داشته باشد" },
+  array: { unit: "آیتم", verb: "داشته باشد" },
+  set: { unit: "آیتم", verb: "داشته باشد" },
+};
+
+function getSizing(origin: string): { unit: string; verb: string } | null {
+  return Sizable[origin] ?? null;
+}
+
+export const parsedType = (data: any): string => {
+  const t = typeof data;
+
+  switch (t) {
+    case "number": {
+      return Number.isNaN(data) ? "NaN" : "عدد";
+    }
+    case "object": {
+      if (Array.isArray(data)) {
+        return "آرایه";
+      }
+      if (data === null) {
+        return "null";
+      }
+
+      if (Object.getPrototypeOf(data) !== Object.prototype && data.constructor) {
+        return data.constructor.name;
+      }
+    }
+  }
+  return t;
+};
+
+const Nouns: {
+  [k in $ZodStringFormats | (string & {})]?: string;
+} = {
+  regex: "ورودی",
+  email: "آدرس ایمیل",
+  url: "URL",
+  emoji: "ایموجی",
+  uuid: "UUID",
+  uuidv4: "UUIDv4",
+  uuidv6: "UUIDv6",
+  nanoid: "nanoid",
+  guid: "GUID",
+  cuid: "cuid",
+  cuid2: "cuid2",
+  ulid: "ULID",
+  xid: "XID",
+  ksuid: "KSUID",
+  datetime: "تاریخ و زمان ایزو",
+  date: "تاریخ ایزو",
+  time: "زمان ایزو",
+  duration: "مدت زمان ایزو",
+  ipv4: "IPv4 آدرس",
+  ipv6: "IPv6 آدرس",
+  cidrv4: "IPv4 دامنه",
+  cidrv6: "IPv6 دامنه",
+  base64: "base64-encoded رشته",
+  base64url: "base64url-encoded رشته",
+  json_string: "JSON رشته",
+  e164: "E.164 عدد",
+  jwt: "JWT",
+  template_literal: "ورودی",
+};
+
+const error: errors.$ZodErrorMap = (issue) => {
+  switch (issue.code) {
+    case "invalid_type":
+      return `ورودی نامعتبر: می‌بایست ${issue.expected} می‌بود، ${parsedType(issue.input)} دریافت شد`;
+    case "invalid_value":
+      if (issue.values.length === 1) {
+        return `ورودی نامعتبر: می‌بایست ${util.stringifyPrimitive(issue.values[0])} می‌بود`;
+      }
+      return `گزینه نامعتبر: می‌بایست یکی از ${util.joinValues(issue.values, "|")} می‌بود`;
+    case "too_big": {
+      const adj = issue.inclusive ? "<=" : "<";
+      const sizing = getSizing(issue.origin);
+      if (sizing) {
+        return `خیلی بزرگ: ${issue.origin ?? "مقدار"} باید ${adj}${issue.maximum.toString()} ${sizing.unit ?? "عنصر"} باشد`;
+      }
+      return `خیلی بزرگ: ${issue.origin ?? "مقدار"} باید ${adj}${issue.maximum.toString()} باشد`;
+    }
+    case "too_small": {
+      const adj = issue.inclusive ? ">=" : ">";
+      const sizing = getSizing(issue.origin);
+      if (sizing) {
+        return `خیلی کوچک: ${issue.origin} باید ${adj}${issue.minimum.toString()} ${sizing.unit} باشد`;
+      }
+      return `خیلی کوچک: ${issue.origin} باید ${adj}${issue.minimum.toString()} باشد`;
+    }
+    case "invalid_format": {
+      const _issue = issue as errors.$ZodStringFormatIssues;
+      if (_issue.format === "starts_with") {
+        return `رشته نامعتبر: باید با "${_issue.prefix}" شروع شود`;
+      }
+      if (_issue.format === "ends_with") {
+        return `رشته نامعتبر: باید با "${_issue.suffix}" تمام شود`;
+      }
+      if (_issue.format === "includes") {
+        return `رشته نامعتبر: باید شامل "${_issue.includes}" باشد`;
+      }
+      if (_issue.format === "regex") {
+        return `رشته نامعتبر: باید با الگوی ${_issue.pattern} مطابقت داشته باشد`;
+      }
+      return `${Nouns[_issue.format] ?? issue.format} نامعتبر`;
+    }
+    case "not_multiple_of":
+      return `عدد نامعتبر: باید مضرب ${issue.divisor} باشد`;
+    case "unrecognized_keys":
+      return `کلید${issue.keys.length > 1 ? "های" : ""} ناشناس: ${util.joinValues(issue.keys, ", ")}`;
+    case "invalid_key":
+      return `کلید ناشناس در ${issue.origin}`;
+    case "invalid_union":
+      return `ورودی نامعتبر`;
+    case "invalid_element":
+      return `مقدار نامعتبر در ${issue.origin}`;
+    default:
+      return `ورودی نامعتبر`;
+  }
+};
+
+export { error };
+
+export default function (): { localeError: errors.$ZodErrorMap } {
+  return {
+    localeError: error,
+  };
+}
diff --git a/packages/docs/content/error-customization.mdx b/packages/docs/content/error-customization.mdx
index 64444b35e3..7b8a8225f2 100644
--- a/packages/docs/content/error-customization.mdx
+++ b/packages/docs/content/error-customization.mdx
@@ -359,6 +359,7 @@ The following locales are available:
 - `az` — Azerbaijani
 - `be` — Belarusian
 - `en` — English
+- `fa` — Farsi
 - `ko` — Korean
 - `ota` — Türkî
 - `es` — Spanish