Mercury may refer to:
- Mercury (God), the Roman God who appeared in the Beyond Belief episode The Heart is a Lonely Haunter (TAH #159).
- Mercury (Horse), Sparks Nevada's robot horse.
- Mercury (Planet), the smallest planet in the Solar system.
- Lizard Men (Mercury), the aliens who live on Mercury in Sparks Nevada, Marshal on Mars.
For more information on other meanings for Mercury, please visit Wikipedia.