What Does the Name Brennan Mean
The name Brennan comes from Irish roots and carries a meaning worth knowing. Read the full meaning and origin of Brennan below, then browse real variants, short forms, and related names from the same family. Tap any name to copy it instantly.
Brennan Name Meaning
Irish, EnglishFrom an Irish surname derived from Ó Braonáin meaning "descendant of Braonán". Braonán is a byname meaning "rain, moisture, drop" (with a diminutive suffix).
Frequently Asked Questions
What does the name Brennan mean?
The full meaning, origin and background of Brennan appear in the meaning card at the top of this page, followed by real variants and related names from the same family.
Is Brennan a boy or girl name?
The usage and origin of Brennan are shown in the meaning card above — the related names below include forms used across genders.
What names are similar to Brennan?
The list below shows real name variants, short forms, and names that share the roots or sound of Brennan — tap any name to copy it.
Is Brennan a rare name?
Many names carry centuries of history yet stay uncommon today. Browse the related names below to find a form of Brennan that feels right.