The Gaelic surname Mac Suibhne is a patronymic form of Suibhne and means "son of Suibhne". The personal name Suibhne means "pleasant".
Anglicised forms of Mac Suibhne include: McSeveney,McSeveny,McSween,McSweeney,McSweeny,McSwiney,Sweaney,Sween,Sweeney,Sweenie,Sweeny,Sweney,Swiney,Swinney, A lenited variant form of Mac Suibhne is Mac Shuibhne. Anglicised forms of the latter Gaelic name include: (possibly) Mawhinney,McQueen,McQueeney,McQueenie, (possibly) McWhinney,Queen,Queeney,Wheen.
One particular family that has borne the surname Mac Suibhne is Clann Suibhne. Members of this Scottish family settled in Ulster as gallowglass warriors in the Middle Ages.