How to Say Happy Birthday in Spanish (+ Variations You'll Hear)

Happy birthday in Spanish is ¡feliz cumpleaños! — and if the birthday person is Mexican, you should also know two more things: the affectionate short form ¡feliz cumple!, and the fact that Mexicans don’t sing “Happy Birthday to You” at all. They sing Las Mañanitas, a completely different (and much prettier) song. Get the phrase, the variations, and the traditions here, and you’ll never just mumble the one line you memorized.

The main way to say it

¡Feliz cumpleaños! — pronounced feh-LEES koom-pleh-AH-nyohs.

Breaking it down:

• Feliz = happy; cumpleaños = birthday, built from cumplir (to complete/turn) + años (years). A birthday in Spanish is literally the “completing of years” — which is why Spanish also asks ¿cuántos años cumples? (“how many years are you turning?”).
• The ñ is its own letter, pronounced like the ny in “canyon”: ah-NYOHS. This one matters — see the mistakes section for why.
• The word always ends in -s, even for one birthday. Cumpleaños is one of those Spanish nouns (like paraguas) whose singular form already ends in s: el cumpleaños, los cumpleaños. There is no such word as cumpleaño.

In Mexico you’ll constantly hear the clipped, affectionate ¡feliz cumple! between friends — the Spanish equivalent of “happy bday!” It’s warm, casual, and completely standard in speech and texts.

Variations

Phrase	Meaning	When to use it
¡Feliz cumpleaños!	Happy birthday!	Universal, any register
¡Feliz cumple!	Happy bday!	Casual — friends, texts, very common in Mexico
¡Muchas felicidades!	Congratulations! / All the best!	Extremely common on birthdays in Mexico
¡Felicidades en tu día!	Congratulations on your day!	Warm, card-worthy
¡Que cumplas muchos más!	May you have many more!	Classic follow-up wish
¡Que todos tus deseos se hagan realidad!	May all your wishes come true!	Sweet, for cards and toasts
¡Feliz vuelta al sol!	Happy trip around the sun!	Trendy, social-media flavored
¡Que te la pases muy bien!	Have a great one!	Very Mexican — the standard party wish

Note that ¡felicidades! on its own is a totally normal birthday greeting in Mexico — you don’t have to say cumpleaños at all. A very natural combo: ¡Muchas felicidades! ¿Cómo te la estás pasando? (“Congratulations! How’s your day going?”)

The cultural package. In Mexico, birthdays come with rituals worth knowing:

• Las Mañanitas — the traditional birthday song, sung at parties, at midnight, or as a dawn serenade. First line: Estas son las mañanitas que cantaba el rey David… Nobody expects you to nail every verse, but recognizing it (and humming along) earns you serious points.
• La mordida — after the song, the crowd chants ¡mor-di-da! ¡mor-di-da! (“bite!”) and the birthday person takes a bite of the cake with no hands… at which point someone traditionally pushes their face into it. All love, mostly frosting.

Hear it in context

Texting a friend at midnight (casual):

— ¡¡Feliz cumple!! 🎉 Que te la pases increíble hoy. — ¡Gracias! ¿Vienes a la fiesta el sábado? — ¡Claro que sí! ¿Qué le llevo al festejado? — Nada, solo ganas de bailar.

Happy bday!! Have an amazing day. — Thanks! Are you coming to the party Saturday? — Of course! What should I bring for the birthday boy? — Nothing, just be ready to dance.

At the party, cake time (festive):

— ¡Muchas felicidades, tía! Que cumplas muchos años más. — Gracias, mi amor. ¡Vengan todos, ya vamos a partir el pastel! — ¡Primero Las Mañanitas! Y luego… ¡mordida, mordida!

Happy birthday, auntie! May you have many more. — Thank you, sweetheart. Everyone come, we’re about to cut the cake! — Las Mañanitas first! And then… bite, bite!

Common mistakes

• “Feliz cumpleaño.” No final -s = not a word. Cumpleaños keeps its s even in the singular: mi cumpleaños es en julio.
• Skipping the ñ. Años means years; anos… means anuses. Feliz cumpleanos in writing (no tilde) is forgiven; saying “ah-nos” out loud is the most infamous beginner blooper in Spanish. Practice that ny sound.
• “Feliz nacimiento.” Nacimiento is birth (the event, or a nativity scene) — nobody says this for birthdays.
• Assuming “felicidades” is only for achievements. On birthdays, ¡felicidades! is not just acceptable — in Mexico it’s one of the most common things to say.
• Singing “Happy Birthday” translated. The English melody exists in Mexico, but the real tradition is Las Mañanitas. At a Mexican party, wait for it.

Related phrases

Celebrations come as a bundle:

• How to say congratulations in Spanish — felicidades vs. felicitaciones, explained properly.
• How to say thank you in Spanish — for when the birthday wishes are pointed at you.
• Need to say when the birthday is? Brush up with days and months in Spanish.

FAQ

Is it “feliz cumpleaños” or “felices cumpleaños”? Feliz cumpleaños. The noun looks plural but functions as singular here, so feliz stays singular.

How do you say “happy belated birthday”? ¡Feliz cumpleaños atrasado! — a totally normal thing to say (or text) in Mexico when you missed the day.

What is Las Mañanitas? Mexico’s traditional birthday song, sung instead of “Happy Birthday to You” — at parties, at midnight, or as an early-morning serenade.

How do I ask someone’s age politely? ¿Cuántos años cumples? (“how many are you turning?”) is the friendly party version. With adults you don’t know well… maybe just don’t.

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Want to sound natural when the cake comes out — not just recite a memorized line? Practicing phrases like these out loud with Sofia, an AI Spanish tutor with a Mexican accent, makes them stick before the next party.