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