Yellow Grass is a town in southern Saskatchewan, Canada at . It is located 30 km northwest of Weyburn, at the junction of provincial highways 39 and 621. The town is located on the Canadian Pacific Railway Soo Line. The elevation is at 1875 feet (572 m) above sea level.
The town was founded as an unincorporated village and named after the yellow prairie grass that surrounds the area. The town was built shortly after the railway line was completed in 1893. The town site itself was surveyed in 1882. The town applied to the Northwest Territories government July 22, 1903 and became an incorporated village. On February 15, 1906 Yellow Grass was incorporated as a town.
The town itself has a primarily agricultural based economy. Like other Saskatchewan rural communities the town has seen a large portion of young residents leave to find work in other parts of Canada. Yellow Grass has grown little since the boom years in the early twentieth century; many resident families are descendants of the original pioneers.