Rhumb may refer to:

• Rhumb line, a navigational path with a constant bearing
• one of the 16 or 32 points of the compass (now rare)
• a nautical unit of angular measure equal to 1⁄32 of a circle or 11+1⁄4° (now rare)

• Bearing (navigation)
• RumB, an enzyme
• Rhum (disambiguation)
• Rhombus (disambiguation)