Seltzer is carbonated water.
Seltzer may also refer to:
- Hard seltzer, alcoholic drink
- Seltzer (surname)
- Seltzer, Pennsylvania, a census-designated place in Schuylkill County, Pennsylvania, United States
See also
- Alka-Seltzer
- Bromo-Seltzer
- Selters (Lahn), a village in Germany known for its natural mineral springs
- Seltzer bottle
- Selzer
- Setzer