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Birthday in Irish (Breithlá): Meaning, Pronunciation, Usage

The Irish for birthday is breithlá, a masculine noun (plural breithlaethanta).
Updated October 2026Report a mistake

How to say “birthday” in Irish

Irish:
breithlá
English:
birthday
Word type:
noun
Gender:
masculine
Pronunciation:
“BREH-law”  /ˈbʲɾʲɛhl̪ˠɑː/
Various forms
Plural:
breithlaethanta (birthdays)
Genitive singular:
breithlae, an bhreithlae (e.g. cáca breithlae, birthday cake)
Genitive plural:
breithlaethanta, na mbreithlaethanta (e.g. ceiliúradh na mbreithlaethanta, the birthday celebrations)

What does “breithlá” mean?

birthday
The day each year on which a person was born, or the anniversary of that day.Also: birth day, anniversary of birth.

“Breithlá” with the article

The plural of birthday in Irish is breithlaethanta. Here is breithlá after the article (an t-alt), in the singular and the plural.

an breithlá
the birthday
No change after an
na breithlaethanta
the birthdays
Plural: no change after na

“Breithlá” in a sentence: Irish examples

Common Irish sentences using breithlá, the Irish word for birthday.

Breithlá sona duit!
Happy birthday to you!
Comhghairdeas ar do bhreithlá.
Congratulations on your birthday.
Is é inniu mo bhreithlá, tá mé fiche.
Today is my birthday, I'm twenty.
Bhí cóisir mhór againn don bhreithlá.
We had a big party for the birthday.
Cheannaigh mé cárta breithlae do Mham.
I bought a birthday card for Mum.
Tá mo bhreithlá i mí Mhárta.
My birthday is in March.
Tá mé ag cuartú bronntanais do bhreithlá mo dhearthár.
I'm looking for a present for my brother's birthday.

Other nouns in Irish

More everyday Irish nouns to learn next.

Phrases with “breithlá”

Birthday in Irish: frequently asked questions

What is the Irish for birthday?

The Irish for birthday is breithlá (pronounced “BREH-law”). It’s a masculine noun and the plural is breithlaethanta.

How do you pronounce breithlá in Irish?

Breithlá is said like “BREH-law” (IPA /ˈbʲɾʲɛhl̪ˠɑː/).

What is the plural of birthday in Irish?

The plural of breithlá is breithlaethanta; with the article, na breithlaethanta means “the birthdays”. The genitive plural is breithlaethanta, as in ceiliúradh na mbreithlaethanta (the birthday celebrations).

Why does breithlá change to bhreithlá or mbreithlá?

Irish changes the start of some words after certain words. After mo (my) breithlá becomes mo bhreithlá (lenition), and after ár (our) or i (in) it becomes ár mbreithlá (eclipsis).

How do I say 'happy birthday' in Irish?

Say 'Breithlá sona!' or 'Breithlá sona duit!'. You may also hear 'Lá breithe sona'.

Is there another word for birthday?

Yes, 'lá breithe' (literally 'day of birth') is also widely used and means the same as 'breithlá'.

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