Support vessel may refer to:

Military ship classes Auxiliary ship, designed to support warships Bacolod City-class logistics support vessel, a ship class in the Philippine Navy General Frank S. Besson-class logistics support vessel, a type of watercraft in the United States Army Immediate Support Vessel, a type of patrol boat in the Indian Navy Maneuver Support Vessel (Light), a type of landing craft in the United States Army Marino-class diving support vessel, a diving vessel in the Italian Navy Multi-Role Support Vessel (India) Multi-role support ship (Malaysia)

Other Diving support vessel, a ship that is used as a floating base for professional diving projects Yacht support vessel