Updated February 1, 2024 Share: Table of contents Boy name origins & meanings Gaelic : Little hero Boy name variations Sweeny Sweeny 0 % this year Masculine Rare Find out more 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)