Walter may refer to:
- Walter Engines, Czech manufacturer of aero-engines
- Hellmuth Walter Kommanditgesellschaft, German manufacturer of rocket engines
- Gualtieri, Italy
- United States
- Walter, a puppet of ventriloquist Jeff Dunham
- Walter, a fictional character from The Beano comic strip, Dennis and Gnasher
- Walter, a Muppet introduced in The Muppets.