Farm to Market Road 1120 (FM 1120) is a farm-to-market road, a state-maintained highway that serves to connect rural and agricultural areas to market towns, in the U.S. state of Texas. The highway travels through Real County, beginning at an intersection with U.S. Highway 83 (US 83) just south of Leakey. The 7.5-mile-long (12.1 km) road travels south to the community of Rio Frio where it intersects FM 2748 where it heads west to terminate at the intersection with US 83.