The Garay Department (in Spanish, Departamento Garay) is an administrative subdivision (departamento) of the province of Santa Fe, Argentina.

Its head town is the city of Helvecia (population 8,500).

The eastern limit is marked by the Paraná River, which is the natural border with the province of Entre Ríos.

The towns and cities in this department are (in alphabetical order): Cayastá, Colonia Mascías, Helvecia, Saladero Mariano Cabal, and Santa Rosa de Calchines.

This article about a place in Santa Fe Province, Argentina is a stub.