indicate the level to which a name has been verified.
Type Surname
Usage Irish
Meaning & History
Lahey and Leahy originate from two different Gaelic surnames. Lahey, Lahy, Lahiff, Lahiffe, Laffey, and Lahive all originate from the Gaelic surname O Laithimh, which itself is a variant of O Flaithimh. O Flaithimh derives from the Irish word flaitheamh, which means lord or ruler.