Updated February 1, 2024 Table of contents Find Baby Names Boy name origins & meanings Gaelic : Little hero Boy name variations Sweeny Sweeny 0 % this year Masculine Rare READ MORE DETAILS Family name origins & meanings Irish : reduced form of McSweeney, an Anglicized form of Gaelic Mac Suibhne ‘son of Suibhne’, a byname meaning ‘pleasant’. Americanized form of French Choinière (see Choiniere). Appears on 100 Boy Names That Mean Warrior (With Their Origins)