Family name origins & meanings
- Irish : reduced Anglicized form of Gaelic Mac Toimín ‘son of Toimín’, a pet form of Tomás, Gaelic form of Thomas.
- Irish : Anglicized form of Gaelic Ó Tiomáin ‘descendant of Tiomán’, a personal name from a diminutive of tiom ‘pliant’, ‘soft’.
- Irish : reduced Anglicized form of Gaelic Ó Tiománaigh (see Timoney).
- English : patronymic from a pet form of the personal name Timm.