Abstract: A ladder caddy apparatus includes a rung hook portion which includes an upper hook region and a lower hook region. A rail bracket assembly is connected to the lower hook region, and an item-support assembly is connected to the rail bracket assembly. A rear portion of the upper hook region extends behind the lower hook region. The rail bracket assembly extends behind the lower hook region. The lower hook region and a front portion of the rail bracket assembly are coplanar. The upper hook region and the lower hook region extend along a longitudinal hook axis. The item-support assembly extends along an item-support axis. The longitudinal hook axis and the item-support axis are perpendicular to one another. The rail bracket assembly includes a rail-reception bracket, and a screw clamp assembly is attached to the rail-reception bracket. The item-support assembly includes a support strut connected to the rail bracket assembly. The support strut includes an upwardly curved distal strut end.