A waterway marker illuminating assembly includes a base that has a top side and a bottom side. The bottom side is abutted against and attached to a boat. A post is attached to the top side and extends upwardly therefrom. A housing is attached to an upper end of the post distal to the base. A laser light emitter is mounted in the housing and emits laser light when the laser light emitter is turned on. The laser light emitter illuminates a waterway marker such that a boat operator can easily see the waterway marker.