Vajra may refer to:
- The recurring ability.
- The recurring weapon.
- The enemy from Final Fantasy Type-0.
- The boss from Final Fantasy Brave Exvius.
Vajra (वज्र, vájra) is a Sanskrit word meaning both thunderbolt and diamond. As a material device, the vajra is a ritual object, a short metal weapon—originally a kind of fist-iron like Japanese yawara—that has the symbolic nature of a diamond (it can cut any substance but not be cut itself) and that of the thunderbolt (irresistible force).