An adjustable fishing pole holder system which is adaptable to temporarily but securely mount on a variety of receiving structures is described. The adjustable fishing pole holder system of the invention may be mounted on horizontal structures of various cross-sections such as the hand rails of bridges, catwalks, jetties or similar structures. The adjustable fishing pole holder system may also be mounted on vertical or angled structures such as pilings and the like. The adjustable fishing pole holder of the invention is attached to a receiving structure by at least one adjustable strap which may further comprise a ratcheting strapped tightener. A fishing hook eye retainer is provided which allows a fisherman to securely attach a hooked line in order to prevent snag injuries. The invention may also be used to hold other devices such as flag poles or other pole-like structures.