Bexar can refer to:
- Bexar County, Texas, a county in the American state of Texas containing the city of San Antonio
- Bexar, Alabama, a community in Marion County, Alabama in the United States
- USS Bexar (APA-237), a Haskell-class attack transport in the US Navy
- Siege of Bexar (or Bejar), an early campaign of the Texas Revolution
- Bexar (surname), a surname popular among Sephardi Jews (also rendered as Bejar, Bejarano, Behar, or Vejar)
- Béxar, a former spelling of Béjar, a city in the province of Salamanca in western Spain