Bexar can refer to:
Places:
- Bexar County, Texas, containing the city of San Antonio
- Bexar, Alabama, a community
- Bexar, Arkansas, an unincorporated community
- Béxar, a former spelling of Béjar, a city in the province of Salamanca in western Spain
Military uses:
- USS Bexar (APA-237), a Haskell-class attack transport in the US Navy
- Siege of Béxar (or Bejar), an early campaign of the Texas Revolution