Ketch Kin is a type of sailing vessel, specifically a two-masted boat with a mizzenmast stepped aft of the rudder post and a jib-headed mainsail. It is similar to a YAWL, which is a two-masted sailing vessel with the mizzenmast stepped aft of the rudder post and a gaff-rigged mainsail. The main difference between a ketch and a YAWL is that the mizzenmast of a ketch is usually taller than the mizzenmast of a YAWL.