---
name: locale-fr-mc
description: Use when working with the French (Monaco) locale (`fr-MC`) — its endonym Français (Monaco), Latin script, left-to-right (LTR) direction, or spoken-population data. Reference data and translation guidance (register, grammar, idiom, typography) for this specific locale; see [[locale]] for general i18n/l10n concepts (BCP 47, plural rules, RTL) that apply across all locales.
---

# Locale: French (Monaco) (fr-MC)

Reference data for the **French (Monaco)** locale — endonym **Français (Monaco)**, written in the Latin script, left-to-right (LTR).

## Identifiers

- **BCP 47 tag:** `fr-MC`
- **ISO 639-1:** `fr`
- **ISO 639-3:** `fra`
- **Script:** Latn (Latin)
- **Region:** MC (Monaco)
- **Text direction:** ltr — left-to-right (LTR)

## Speakers (approximate)

- **L1 (native):** 15,000
- **L2 (additional):** 20,000
- **L1+L2 (total):** 35,000

## Base locale

This is a regional variant of [[locale-fr-001]] (French), the base/macro locale for this language.

## Pluralization

CLDR plural categories for this locale: **one**, **many**, **other** (3 forms).

- **one** — `i = 0,1` (e.g. 0, 1)
- **many** — `e = 0 and i != 0 and i % 1000000 = 0 and v = 0 or e != 0..5` (e.g. 1000000, …)
- **other** — everything else (e.g. 2~17, 100, 1000, 10000, …)

See [[unicode-messageformat]] for writing plural messages using these categories.

## Translating into this locale

Apply [[locale-fr-001]] with Monaco conventions. French is the official language of the Principality.

- **Register:** very formal in official text; the Prince is addressed as "Son Altesse Sérénissime" (S.A.S.).
- **Currency and formats:** euro; day/month/year; French typography with non-breaking spaces before `: ; ! ?`.
- **Terminology:** use official names of Monaco institutions ("Principauté de Monaco", "Conseil National", "Palais Princier") unchanged.
- **Monégasque:** the local language is Monégasque (a Ligurian language); place names may appear in it, and spelling should follow official signage.

## Common pitfalls

- Using informal tone in official or protocol material.
- Mistranslating or abbreviating titles.
- The general pitfalls in [[locale-fr-001]] also apply.

## Learn more

- [[locale]] for BCP 47 identifiers, locale-sensitive formatting, pluralization, and text-direction concepts that apply across all locales.
- [[unicode-messageformat]] for writing plural/selection messages correctly for this locale's grammar.
- Microsoft Localization Style Guides, French (https://aka.ms/french-france-styleguide and https://aka.ms/french-canada-styleguide)