Farm to Market Road 4 (FM 4) is a farm to market road in Texas, United States, maintained by the Texas Department of Transportation (TxDOT), that runs between the cities of Grandview and Jacksboro.

As of 2012[update], FM 4 is one of the longest farm to market roads in the state of Texas.

It then passes through several small communities, including Sand Flat, before reaching the city of Cleburne, where it has a concurrency with SH 171/SH 174.

It then proceeds through Acton, Granbury, Lipan, Santo, and Palo Pinto before reaching its northern terminus in Jacksboro.

On February 6, 1953, the route had been extended north to a road intersection south of the Brazos River, replacing FM 1193.