A water ski rack for attachment to a boat is disclosed. The rack provides at least two spaced frame units with mounting brackets, and a plurality of obliquely slanted upwardly projecting ski holding elements slidably mounted upon the frame units, and adapted to support the skis. The slidable ski holding elements include a removable protective sheath and are adjustable along the length of the frame unit to accommodate a variety of skis. The frame units and mounting brackets are adjustable to allow attachment to different boats.