Error can refer to:
- Error message, for when an unintended behavior occurs.
- 0 ERROR, a trainer/fly subglitch in Generation I causing Route 6 to be filled with glitch effects
- Glitch, an error in the game's programming.
It may also refer to:
- Move errors:
- Error cards, mistakes on cards in the TCG.
- Computer Error (Wizards Promo 16), a Rocket's Secret Machine card.