Abstract: A fishing rod holder system, for holding a fishing rod and securing to a deck rail or ground surface, using a fishing rod holder having a threaded rod, a fixed clamp attached to one end of the threaded rod, a u-shaped rod support bracket attached to the other end of the threaded rod, a movable clamp, and an adjustment wheel for holding the fixed clamp against the movable clamp. A rod support tube mounts in the u-shaped rod support bracket and has an open end for holding the fishing rod. A ground adapter has a cylindrical body that selectively inserts between the fixed clamp and movable clamp and has a pair of stakes for attaching to the ground surface. The holder may be secure to the deck rail by extending the deck rail between the fixed clamp and movable clamp and tightening the adjustment wheel thereagainst.