Abstract: A paint container holder for use with a ladder having hollow rungs, the interiors of which are accessible from the side of the ladder. The paint container holder having a support portion including a planar support surface and a support arm extending from an edge of the support portion and sized to fit within the hollow rung. A wedge shaped member is provided to be inserted into the hollow rung, between the support arm and the interior surface of the rung, to secure the holder to the ladder.