Rhum can mean a number of things:
- the spelling for the Scottish island of Rùm from Victorian times to 1991
- MV Rhum island class ferry
- an alternative spelling for rum, a distilled beverage made from sugarcane by-products
- Rhum gasfield, a gas field in the UK sector of the North Sea
- Rhum (actor) a French actor and clown, friend of Jacques Tati and star of the short film Gai dimanche