The present disclosure is directed to a dock cart cover, including a lower portion, and a tensioning device. The lower portion is dimensioned to fit about the sides of the dock cart. The tensioning strap may selectively apply tension inward about the sides of the dock cart. The dock cart cover may include an upper portion which may be expanded upward from the lower portion. The dock cart cover may be attached to dock carts in either an expanded state or a collapsed state.