| Peaster | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Texas#USA |
| Pushpin Map Caption: | Location within the state of Texas |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Subdivision Name2: | Parker |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1243 |
| Coordinates: | 32.83°N -97.8544°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2797202 |
Peaster is an unincorporated community in Parker County, Texas, United States, nine miles (14 km) northwest of Weatherford.
Settlement began in the 1870s when Georgia native H.H. Peaster bought 160acres of land and built a house. The community that developed near the site of his home was originally called Freemont; in 1885 the name was changed to Peasterville. Throughout the 20th century, Peaster has served area farmers as a school and church community. During the mid-1920s the town's population grew to approximately 300, but this was soon followed by a steep decline after the Great Depression. From 1975 to 1990, Peaster had around 80 residents. Current estimates put the population at approximately 100.
The Peaster Independent School District serves the community and is home to the Peaster High School Greyhounds. Peaster High School has many sports, which include: Basketball, Baseball, Football, Golf, Tennis, Track and Field, Softball, Volleyball, and Cross-country.
Peaster is the birthplace of writer Robert E. Howard, creator of the character Conan the Barbarian.