Abstract: A ladder caddy for holding tools, small parts, and the like for a workman on a ladder includes four curved cradles for holding the caddy to the ladder, two of the cradles holding consecutive and respective rungs of the ladder when the caddy is mounted in a first position, and two of the cradles holding consecutive and respective rungs of the ladder when the caddy is mounted in a second position inverted and upside down from the first position. The caddy includes a tool holding structure extending outwardly from the ladder at an angle of approximately 15 degrees offset from perpendicular so that when the caddy is mounted on a leaning ladder the structure extends approximately horizontally. The caddy includes a clamp for clamping to the ladder, integrally formed tool holders, and a variety of accessories that mate with the caddy body.