The word anser comes from Latin, meaning goose, and can refer to:
- Anser (genus), the genus of grey geese
- The star Alpha Vulpeculae, or Anser, in the constellation Vulpecula
- ACME Anser, an amphibious jet fighter project of the 1950s
- Sega Mega Anser, a Sega Mega Drive accessory
- Analytic Services (ANSER), a security and defense analysis group