Brennan is an English masculine given name, derived from the Irish surname Ó Braonáin. This surname originated from the Gaelic byname Braonán, a diminutive form based on the word braon, meaning "rain," "moisture," or "drop." An alternative etymology traces it to Branán, a diminutive of bran, meaning "raven." As a given name, Brennan emerged in the 1960s as a modern alternative to similar-sounding names like Brendan and Brandon, though it never reached their level of popularity. Cultural Significance Brennan and its Gaelic root Braonán are primarily masculine names, though Brennan is occasionally used for females. In Irish legend, the name may carry connotations of sorrow on account of the braon–"drop" association, or of intelligence and wisdom tied to the raven (from bran). Despite its rise in the 20th century, Brennan remains less common than its phonetic cousins, appealing to parents seeking a distinct yet familiar-sounding Irish name. Notable Bearers Several notable individuals bear the name Brennan: Brennan Bernardino (born 1992), American baseball player Brennan Boesch (born 1985), American baseball player Brennan Brown (born 1968), American actor Brennan Carroll (born 1979), American football coach Brennan Clost (born 1994), Canadian dancer and actor Brennan Elliott (born 1975), Canadian actor Brennan Evans (born 1982), Canadian ice hockey player Key Facts Meaning: "rain," "moisture," "drop" (or "raven") Origin: Irish surname Ó Braonáin Type: Given name (historically masculine, occasionally feminine) Usage: English-speaking countries since the 1960s