Crystal may refer to:
- The elven material
- Crystal seeds
- Small crystal seeds
- Crystal equipment
- Crystal bow, from a crystal seed
- Crystal shield, from a crystal seed
- Crystal saw, from a small crystal seed
- Crystal chime, from a small crystal seed
- Crystal pikes, wielded by elf warriors
- Crystal trinket, given to the player after completing Mourning's Ends Part II
- Tiny elf crystals, can be enchanted into Teleport crystals
- The Prifddinas wall
- Quest items
- Crystal (Watchtower)
- Crystal (Mourning's Ends Part II)
- Crystal mine key
- Crystal outcrop, found in the depths of the Abandoned Mine
- Yewnock's notes on crystals
- Lava crystals obtained during the Fight Kiln
- Music tracks
- Woodcutting
- Other
- Crystal key, made from the Loop half of a key and Tooth half of a key, which opens the Crystal chest
- Crystal triskelion, made from Crystal triskelion fragment 1, Crystal triskelion fragment 2 and Crystal triskelion fragment 3
- Crystal of seren
- The crystal throne from the Construction skill
- Power crystal
- Divine crystal