Phineas may refer to:
- The Traveler Hitchhiking Ghost, often referred to by fans as "Phineas," an unofficial name for the character that originated from fan fiction but has been used in merchandise and some media adaptations.
- Phineas P. Pock, the singing bust character.
- Phineas Pock, a name on a tombstone as well as the name of a character in a radio ad.
- Phineas J. Pock, the author of Magic from the Haunted Mansion in Disneyland.
- The Skeleton Hitchhiking Ghost, named Phineas in the Build Your Own Haunted Mansion activity book.
- Professor Phineas, a traveling snake oil salesman whose con artist ways have finally caught up to him. He is from The Haunted Mansion comic book series.