Ash is an unincorporated community in Houston County, Texas, United States. According to the Handbook of Texas, the community had a population of 19 in 2000.

James B. Ash, a prominent local figure, was honored when Ash was founded in 1870. In 1890, a post office was established there, and by 1896, the settlement included a gristmill-gin and general store. The village had a chapel, two stores, and a handful of dwellings in the middle of the 1930s despite the post office closing in 1909; 10 people were thought to have lived there in 1936. The shops shuttered after World War II, and by the early 1970s, only a church and a few dispersed dwellings remained. Ash was a dispersed rural village in the early 1990s, for which there were no demographic estimates. However, just 19 people were living there in 2000.

Ash is located 16 miles (26 km) southwest of Crockett at the western terminus of FM 1280.

Ash School opened in 1890 and had 58 students enrolled in 1897. Today, the community is served by the Lovelady Independent School District.