indicate the level to which a name has been verified.
Type Surname
Usage Irish
Other Forms FormsKiernan, MacKiernan, Tiernan, McKernan, McKernon, McKernin, McKernen, etc.
Meaning & History
Gaelic form of Keirnan is Mac Thighearnain, which is derived from the word tighearna, meaning "lord." First found in County Cavan, Ireland.