Time machine may refer to:
Machines[]
- Mermaid Man and Barnacle Boy's time machine - The time machine of Mermaid Man and Barnacle Boy
- Time machine (SB-129) - The time machine from "SB-129"
- Time machine (The SpongeBob Movie: Sponge Out of Water) - The time machine from The SpongeBob Movie: Sponge Out of Water.
Shorts[]
- "Time Machine" - A "Back to the Past" short.