Abstract: A supporting device is provided for supporting a saddle on a truck having a truck box with a plurality of stake pockets formed along respective sides of the box. The supporting device comprises a post arranged to be slidably mounted within one of the stake pockets of the truck and a support frame extending laterally outwardly from one side of the post which is suitably arranged to support the saddle thereon. The slidable mounting of the saddle supporting device within one of the stake pockets provides a support for supporting a saddle thereon regardless of where the saddle is being used. The device is thus portable with the truck to provide a suitable supporting surface for a saddle even when away from the stable or related area where the horses upon which the saddle is to be used are normally kept. A suitable bracket may also be provided for supporting the post on a wall or other related supporting surface.