- Current rating.
to add this name to your favorite namelist!
The meaning of the name Brennan: Tear, Sorrow
The origin of the name Brennan: Irish
Alternate spellings: Brennen
People who like the name Brennan also like: Liam
, Brendan Ava
Notes: Diminutive of the Irish word, Braon.
BN name lists
in U.S. births