Hammer may refer to:
- Tools
- Hammer
- Hammer (Dungeoneering), same as a regular hammer but used in Dungeoneering
- Sacred clay hammer, an item obtained from the Stealing Creation minigame
- Volatile clay hammer, one of the possible tools that the Volatile Tool can transform into, which players can obtain in the Stealing Creation minigame
- Blast Fusion Hammer, can be purchased after the While Guthix Sleeps quest for 1,000,000 coins at the Blast Furnace, used to make only one dragon platebody at the Dragon Forge with 92 Smithing
- Dwarven ramhammer, an item obtained from Treasure Hunter
- Weapons
- Gadderhammer, a members-only two-handed maul
- Rock hammer, Slayer equipment that is required to kill gargoyles
- Torag's hammer, a two-handed melee weapon that is part of Torag the Corrupted's equipment
- Warhammer, a slow and heavy one-handed melee weapon that has a crush attack
- Others
- Flamtaer hammer, a replacement for the regular hammer that players can use during the Shades of Mort'ton quest and the subsequent minigame
- Golden hammer, released as a reward item to celebrate Jagex's win in the Golden Joystick Awards from 2009 and 2010