Gallego is a Spanish surname. It is a regional name denoting someone from Galicia. Notable people with the surname include:
Américo Gallego, Argentine footballerAntonio Gallego Gallego, Spanish musicologistBlas Gallego, Spanish artistFernando Gallego (born c. 1440), Spanish painterGerald and Charlene Gallego, a married couple who committed serial murders from 1978-80José Gallego (footballer born 1923), Spanish footballer who played in England in the 1950sJosé Gallego (footballer born 1959), Spanish footballer with Athletic BilbaoMike Gallego (born 1960), American baseball player and coachPete Gallego, Texas politicianRicardo Gallego, Spanish footballerRuben Gallego (born 1979), American politicianRubén Gallego (born 1968), Russian writer