Grandfalls is a town in Ward County, Texas, United States. It was named for its location near the "grand falls" of the Pecos River, located roughly 3 miles (4.8 km) to the west. Early settlers were attracted to the Grandfalls area in the late 1880s by the steady supply of water flowing in the Pecos River.
Grandfalls is located at 31°20′27″N 102°51′17″W / 31.34083°N 102.85472°W / 31.34083; -102.85472 (31.340779, -102.854785).
According to the United States Census Bureau, the town has a total area of 0.5 square miles (1.4 km²), all of it land.