French or Dutch? A Newcomer's Guide to Language in Brussels

Language in Brussels is a puzzle wrapped in politics. The city is officially bilingual (French and Dutch), sits inside Dutch-speaking Flanders geographically, functions largely in French day to day, and runs a huge chunk of its international life in English. Newcomers are understandably confused. Here's how it actually works — and what to do about it.

The quick reality check

Day-to-day Brussels is majority French-speaking. If you learn one language for daily life, French is the pragmatic choice.
Everything official is bilingual. Street signs, metro announcements, government forms, and public services appear in both French and Dutch, always paired.
English is everywhere in the expat, EU, tech, and hospitality worlds. You can live in English. Many people do for years.
Dutch matters more than newcomers think. For jobs (especially public sector, healthcare, and anything touching Flanders), commuting into Flanders, and simply being a good guest, Dutch is a real asset — and bilingual French/Dutch speakers are highly employable.

Which language should you learn?

For most newcomers: start with French. It unlocks daily life — shops, admin, small talk, dating, most social scenes. It's the language you'll hear most on the street in Brussels.

Add Dutch if: you plan to stay long-term, want to work in the Belgian job market broadly, live or work near/into Flanders, or want to genuinely integrate into the Flemish side of Brussels' cultural life. Even basic Dutch earns enormous goodwill in Flemish contexts, where some people are (understandably) tired of Brussels defaulting to French.

Keep English as your bridge, not your destination. It gets you through the first months and stays useful forever, but leaning on it exclusively is what keeps newcomers stuck in the bubble (see how to fit in).

The golden rules of not offending anyone

Language is genuinely sensitive in Belgium — the country's politics are organised around it. A few safe defaults:

Always greet first, in French: "Bonjour." In a Flemish context or shop, "Goedendag" is even better. The greeting matters more than what follows.
Offer, don't assume. In Flanders or a clearly Dutch-speaking setting, try Dutch or ask "Frans of Nederlands?" / "Français ou néerlandais?" People appreciate being asked rather than defaulted at.
Never assume "everyone here speaks French" out loud in Flanders — it's a fast way to irritate. And don't assume everyone speaks Dutch in French-majority Brussels either.
English is a neutral fallback, often the diplomatic choice when you don't know someone's preferred language — but lead with a local greeting first.

Belgian French has its own flavour

Even fluent French speakers get surprised. Belgian French uses septante (70) and nonante (90) instead of the French forms, plus a whole set of local words and expressions. Ordering food and shopping will throw curveballs. Our Brussels slang guide covers the essentials — learn them and you'll sound less like a Parisian tourist and more like a resident.

Where to actually learn

Commune classes: many Brussels communes and non-profits (asbl) offer cheap or free French and Dutch courses for residents. Ask at your commune.
Maison de la Francité / Huis van het Nederlands: dedicated language houses for French and Dutch respectively, with courses and resources.
Alliance Française (French) and various Dutch schools for structured, paid courses.
Tandem exchanges & conversation tables: trade your English for someone's French over coffee. Cheap, social, and effective.
Apps for vocabulary, but real progress comes from using it — which brings us to the best hack.

The best language hack: live with locals

Language apps plateau fast. Immersion doesn't. The newcomers who actually become conversational almost always have daily, low-stakes practice — and the easiest source is the people you live with. In a mixed coliving house, you'll have Belgian housemates happy to correct your French over dinner and international ones swapping Dutch survival phrases. A shared kitchen is the cheapest, most effective language school in the city, and the stakes ("pass the salt") are low enough that you actually speak.

The bottom line

Learn French for life, add Dutch for depth and jobs, keep English as your bridge, and — above all — greet before you speak and offer rather than assume. Get the etiquette right and Brussels' language maze turns from a minefield into one of the most interesting things about living here.

Settling in? Read the unwritten rules of Belgian culture, our Brussels slang dictionary, or find a coliving community to practise with daily.