Gargallo is a municipality in Andorra-Sierra de Arcos comarca, province of Teruel, Aragon, Spain.

According to the 2010 census the municipality has a population of 140 inhabitants.

It is located on a rocky ridge of the northern side of Sierra de San Just, part of the vast Iberian System.

Road N-211 crosses the southern end of Gargallo.

This article about a location in the Province of Teruel is a stub.