Brennan is a ♂ boy’s name.
The given name Brennan derived from the Irish surname “Ó Braonáin”, but is also a contracted form of Brendan.
Brennan means “descendant of Braonán” and Braonán means “drop”, “rain” and “moisture”, but as well “teardrop” and “sorrow” (from Irish “braon”). Thus, Brennan could mean “descendant of the sad one”. Deriving from Brendan, Brennan means “prince” and “chieftain”.
The name Brennan is ranked #8380 overall.
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