Karambwan may refer to:
- Karambwan poison, a type of poison used on spears and hastae.
- Cooked karambwan, a type of members-only food caught on Karamja
- Raw karambwan, the uncooked form of fish
- Poison karambwan, a fish obtained when raw karambwan is cooked poorly
- Burnt karambwan, the burnt version of the raw karambwan
- Karambwan paste, an item used to poison spears and hastae
- Poorly Cooked Karambwan, a troll fought during Troll Invasion