The sound is right for Liam to be adopted as a girl name, but its status as the top boy name in the latter part of the 2010s may prevent it from reaching its full potential among baby girls.

Liam originated as a nickname for Uilliam, the Irish variation of William. William is an English name from Germanic roots that was brought to Ireland when the British fled England following the Norman Conquest. The Irish began using English names, including William, which led to the development of Uilliam and its short form, Liam.