Brennan is the English form of two Irish Gaelic surnames:
Mac Branáin (bran, raven) "MacBrannan" of Mayo-Sligo-Roscommon.
Ó Braonáin O'Brennan of Kilkenny
Brendan Lynch - Gaelic footballer - was born in 1949.
The Irish Gaelic form of the name Brendan is Breandán. It is derived from the Welsh word for "prince".
In Irish: Breandán (brandaun)
Irish Gaelic: Feirmeoir.Scottish Gaelic: Tuathanach.
It is of Irish and Gaelic origin, and the meaning of Brennan is "teardrop". Variant of Brendan: the meaning of Brendan is "prince".
You don't; it has no Gaelic form to my knowledge.
In Irish Gaelic it is diabéiteas.
In Scottish Gaelic: Albannach In Irish Gaelic: Albanach
In Irish Gaelic: cuimhní In Scottish Gaelic: cuimhneachaidh
muirScottish Gaelic: muir Irish Gaelic: muir or farraige
"Gaelic" can mean "Irish Gaelic' or "Scottish Gaelic". They are classified as two distinct languages.
"Gaelic" can mean "Irish Gaelic' or "Scottish Gaelic". They are classified as two distinct languages.