Las Rosas is a city in the southwest of the province of Santa Fe, Argentina. It lies about 165 km (103 mi) from the provincial capital, Santa Fe.
The city is the head town of the Belgrano Department. The department also comprises the municipalities of Armstrong, Bouquet, Las Parejas, Montes de Oca, and Tortugas.
According to the 2010 census conducted by INDEC, Las Rosas had approximately 13,689 inhabitants.