What is name meaning brennan?

The name Brennan is of Irish origin and is derived from the Gaelic word "Bréanainn," which means "prince" or "chieftain." In Irish history and mythology, St. Brendan was a famous navigator who is said to have reached North America well before Columbus. The name Brennan became popular in the United States in the early 20th century and has remained a popular choice for boys' names. Brenna is the feminine form of Brennan, and it means "little raven" in Irish.