How to Say “When Is My Birthday?” in Spanish

¿Cuándo es mi cumpleaños?
The English phrase "when is my birthday?" is translated into Spanish as ¿Cuándo es mi cumpleaños?
The phrase ¿Cuándo es mi cumpleaños? is a straightforward way to ask when your birthday is.

How does it change in a sentence?

The noun cumpleaños is a compound noun made of cumple (from the verb cumplir, meaning to fulfill or complete) and años (years). In the phrase mi cumpleaños, the possessive adjective mi stays singular to agree with the singular noun cumpleaños, even though the noun ends in s.

Did you know?

  • In Mexico, a birthday party often features a 'mordida' where guests push the birthday person's face into the cake after they say ¡mordida!
  • While cumpleaños is the standard word for 'birthday', some regions use the phrase el día de mi santo to celebrate the day of their namesake saint instead.
  • In some Latin American countries, it is common to sing a song called Las Mañanitas very early in the morning to wake the person on their birthday.

Examples in context

  • Disculpe, ¿podría decirme cuándo es mi cumpleaños, por favor?
    Excuse me, could you tell me when my birthday is, please?
  • Oye, ¿sabes cuándo es mi cumpleaños?
    Hey, do you know when my birthday is?
  • ¿Cuándo es mi cumple, colega?
    When is my b-day, dude?
  • No recuerdo, ¿cuándo es mi cumpleaños?
    I don't remember, when is my birthday?

Example conversation

Daniel is joking with Elena about her memory.

  1. Daniel

    Elena, ¿cuándo es mi cumpleaños?
    Elena, when is my birthday?
  2. Elena

    Es el diez de mayo.
    It is May tenth.
  3. Daniel

    ¡Correcto! Sabías la respuesta.
    Correct! You knew the answer.
  4. Elena

    Claro que lo sé, Daniel.
    Of course I know it, Daniel.
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