Mac Naoimhín is an Irish surname meaning 'son of Naomhán'. The personal name Naomhán derives from the Irish word naomh 'saint' combined with a diminutive suffix, thus meaning 'little saint'. This surname reflects a common Gaelic patronymic naming tradition, where 'Mac' denotes 'son of'. The root name Naomhán, being a saintly epithet, may have originally been a nickname or a devotional name, typical in early medieval Ireland where religious terms were often incorporated into personal names. The surname Mac Naoimhín is primarily associated with Irish usage, and its Anglicized variants include MacNiven, Niven (common in Scotland), and MacNevin, with Nevin being a further contraction. These Scottish and Irish forms often appear as surnames due to wider migration patterns. Notable early figures may have emerged from families who held ecclesiastical or scholarly roles, given the name's saintly connotation.
Sources: Forebears — mac-naoimhín