The boy's name Gallagher \g(a)-lla-gher\ is of Irish and Gaelic origin, and its meaning is "foreignhelper". Actor Peter Gallagher.
A baby name that sounds like Gallagher is Calogero.
Gallagher is a very rare male first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Gallagher. Click here to compare Gallagher with related baby names.