diff --git a/.gitignore b/.gitignore
index 442b5d7d51..8dcfe1f78e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ dist
 .tshy
 .tshy-build
 packages/tsc-perf
+.pnpm-store
 
 tsconfig.vitest-temp.json
 *.tgz
diff --git a/packages/core/src/locales.ts b/packages/core/src/locales.ts
index 5991e88fd8..e4da16ac16 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 frCA from "./locales/frCA.js";
 import mk from "./locales/mk.js";
 import ur from "./locales/ur.js";
 import fa from "./locales/fa.js";
@@ -24,4 +25,4 @@ 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, fa, fi, fr, he, hu, id, it, ja, ko, ota, pl, pt, ru, tr, ua, ur, vi, zhCN };
+export { ar, az, be, cs, es, en, fa, fi, fr, frCA, he, hu, id, it, ja, ko, ota, pl, pt, ru, tr, ua, ur, vi, zhCN };
diff --git a/packages/core/src/locales/frCA.ts b/packages/core/src/locales/frCA.ts
new file mode 100644
index 0000000000..d6ad4f850f
--- /dev/null
+++ b/packages/core/src/locales/frCA.ts
@@ -0,0 +1,126 @@
+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: "caractères", verb: "avoir" },
+  file: { unit: "octets", verb: "avoir" },
+  array: { unit: "éléments", verb: "avoir" },
+  set: { unit: "éléments", verb: "avoir" },
+};
+
+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" : "number";
+    }
+    case "object": {
+      if (Array.isArray(data)) {
+        return "array";
+      }
+      if (data === null) {
+        return "null";
+      }
+
+      if (Object.getPrototypeOf(data) !== Object.prototype && data.constructor) {
+        return data.constructor.name;
+      }
+    }
+  }
+  return t;
+};
+
+const Nouns: {
+  [k in $ZodStringFormats | (string & {})]?: string;
+} = {
+  regex: "entrée",
+  email: "adresse courriel",
+  url: "URL",
+  emoji: "emoji",
+  uuid: "UUID",
+  uuidv4: "UUIDv4",
+  uuidv6: "UUIDv6",
+  nanoid: "nanoid",
+  guid: "GUID",
+  cuid: "cuid",
+  cuid2: "cuid2",
+  ulid: "ULID",
+  xid: "XID",
+  ksuid: "KSUID",
+  datetime: "date-heure ISO",
+  date: "date ISO",
+  time: "heure ISO",
+  duration: "durée ISO",
+  ipv4: "adresse IPv4",
+  ipv6: "adresse IPv6",
+  cidrv4: "plage IPv4",
+  cidrv6: "plage IPv6",
+  base64: "chaîne encodée en base64",
+  base64url: "chaîne encodée en base64url",
+  json_string: "chaîne JSON",
+  e164: "numéro E.164",
+  jwt: "JWT",
+  template_literal: "entrée",
+};
+
+const error: errors.$ZodErrorMap = (issue) => {
+  switch (issue.code) {
+    case "invalid_type":
+      return `Entrée invalide : attendu ${issue.expected}, reçu ${parsedType(issue.input)}`;
+    case "invalid_value":
+      if (issue.values.length === 1) return `Entrée invalide : attendu ${util.stringifyPrimitive(issue.values[0])}`;
+      return `Option invalide : attendu l'une des valeurs suivantes ${util.joinValues(issue.values, "|")}`;
+    case "too_big": {
+      const adj = issue.inclusive ? "≤" : "<";
+      const sizing = getSizing(issue.origin);
+      if (sizing)
+        return `Trop grand : attendu que ${issue.origin ?? "la valeur"} ait ${adj}${issue.maximum.toString()} ${sizing.unit}`;
+      return `Trop grand : attendu que ${issue.origin ?? "la valeur"} soit ${adj}${issue.maximum.toString()}`;
+    }
+    case "too_small": {
+      const adj = issue.inclusive ? "≥" : ">";
+      const sizing = getSizing(issue.origin);
+      if (sizing) {
+        return `Trop petit : attendu que ${issue.origin} ait ${adj}${issue.minimum.toString()} ${sizing.unit}`;
+      }
+
+      return `Trop petit : attendu que ${issue.origin} soit ${adj}${issue.minimum.toString()}`;
+    }
+    case "invalid_format": {
+      const _issue = issue as errors.$ZodStringFormatIssues;
+      if (_issue.format === "starts_with") {
+        return `Chaîne invalide : doit commencer par "${_issue.prefix}"`;
+      }
+      if (_issue.format === "ends_with") return `Chaîne invalide : doit se terminer par "${_issue.suffix}"`;
+      if (_issue.format === "includes") return `Chaîne invalide : doit inclure "${_issue.includes}"`;
+      if (_issue.format === "regex") return `Chaîne invalide : doit correspondre au motif ${_issue.pattern}`;
+      return `${Nouns[_issue.format] ?? issue.format} invalide`;
+    }
+    case "not_multiple_of":
+      return `Nombre invalide : doit être un multiple de ${issue.divisor}`;
+    case "unrecognized_keys":
+      return `Clé${issue.keys.length > 1 ? "s" : ""} non reconnue${issue.keys.length > 1 ? "s" : ""} : ${util.joinValues(issue.keys, ", ")}`;
+    case "invalid_key":
+      return `Clé invalide dans ${issue.origin}`;
+    case "invalid_union":
+      return "Entrée invalide";
+    case "invalid_element":
+      return `Valeur invalide dans ${issue.origin}`;
+    default:
+      return `Entrée invalide`;
+  }
+};
+
+export { error };
+
+export default function (): { localeError: errors.$ZodErrorMap } {
+  return {
+    localeError: error,
+  };
+}
diff --git a/packages/docs/content/error-customization.mdx b/packages/docs/content/error-customization.mdx
index 13dfbb4c6d..514e3dce9c 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
+- `frCA` — Canadian French
 - `mk` — Macedonian
 - `ur` — Urdu
 - `fa` — Farsi