In Gaelic, name Brennan means – Brave.. Other origins for name Brennan include – Gaelic, Irish, Celtic, Irish. Name Brennan is most often used as a boy name or male name.
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In Gaelic, name Brennan means – Brave.. Other origins for name Brennan include – Gaelic, Irish, Celtic, Irish. Name Brennan is most often used as a boy name or male name.