The Tempest is a trailerable, one-design racing sailboat that was designed by British naval architect Ian Proctor and first built in 1965.

Ian Douglas Ben Proctor was a British designer of boats, both sailing dinghies and cruisers. He had more than one hundred designs to his credit, from which an estimate of at least 65,000 boats were built. His pioneering aluminium mast designs also revolutionised the sport of sailing.