The B14 is a two man monohull dinghy, designed by Julian Bethwaite. It is recognised as an international class by the World Sailing. The boat was designed in 1984.

The B14 is designed with a low center of gravity for added stability and an open transom, to help the boat to drain itself quickly and without need of a self-bailer. The mast is set far back in the boat to make room for the large asymmetric spinnaker. The boat has a fast handicap, with a Portsmouth Yardstick of 870, designed with racing in mind. For this reason it is highly suitable for more experienced sailors. The boat does not have a trapeze, but instead makes use of wide wings.