How to Say Hello in Portuguese (Brazilian): Olá, Oi & 15+ Greetings

Oi vs olá vs alô: which "hello in Portuguese" do you use?

Three little words cover almost every situation, and the difference is easy to feel. Oi is the casual, friendly hello you'll hear most in Brazil: with friends, in shops, online, almost everywhere. Olá is a touch more neutral and slightly more formal, and it never sounds wrong. Alô is the telephone hello, like the English "hello?" when you pick up a call.

Good news for you: none of these change for gender or number. Say oi to one friend or twenty people, it stays oi.

Greeting by time of day

Brazilians also greet by time of day, the same trio French speakers meet as bonjour en portugais. Bom dia means good morning, boa tarde means good afternoon, and boa noite covers both good evening and good night. Notice the pattern: bom (masculine) goes with dia, while boa (feminine) goes with tarde and noite. The word just agrees with the gender of the noun.

You can use them alone or stack them onto oi, like "Oi, bom dia!" That sounds friendly and polished.

Two of these carry more than a greeting. Bom dia comes with its own set of morning phrases and workplace habits, and boa noite doubles as a farewell at bedtime, with the wishes that go alongside it.

The check-in that comes with it

In Brazil, a hello almost always comes with a quick check-in. The friendliest is tudo bem? (literally "all well?"). The neat part is that the answer uses the same words: Tudo bem! Other casual options include beleza? and e aí?, both meaning roughly "all good?"

Picking the right reply is its own small skill, from tudo ótimo down to mais ou menos. How are you in Portuguese walks through the whole ladder, including how to bounce the question back.

A quick reminder on thanks: a man says obrigado ("oh-bree-GAH-doo") and a woman says obrigada ("oh-bree-GAH-dah"). The ending matches the speaker, not the listener.

Formal vs informal greetings: when does it matter?

Brazil is warm and informal, so you'll rarely feel out of place with oi or olá. Still, a small upgrade helps with strangers, older people, your boss, or a customer. Lead with bom dia / boa tarde / boa noite plus a name or title, and skip the slang like e aí or beleza.

The word for "you" in Brazil is almost always você ("voh-SEH"), in casual and polite speech alike. You can save tu for later, because most of Brazil simply doesn't use it day to day, one of the ways the Portuguese spoken in Brazil parts company with Portugal's.

And the matching goodbye

Greetings come with matching farewells. Tchau ("chow") is the everyday goodbye, borrowed from Italian and spelled the Brazilian way. For "see you," reach for até logo or até mais. And remember, boa noite doubles as a goodbye at night.

String them together for a natural exit, like "Tchau, até mais!" There's more to farewells than this shortlist, including one real trap: adeus is not the neutral goodbye a dictionary suggests, and it lands oddly in casual Brazilian speech. The full set, plus the sign-offs you'd use in a message, lives in goodbye in Portuguese.