Abstract: A bait cutting board with a cutout portion on its perimeter to allow attachment of the bait cutting board to a cleat on a boat. An adjustable brace closes across the cutout portion to securely attach the bait cutting board to the boat cleat so that a portion of the bait cutting board may be suspended over water during use. Shims attached to the lower surface of the bait cutting board engage the boat and level the working surface of the bait cutting board. In its preferred embodiment a rail, which is supported by rail posts, is positioned around the perimeter of the bait cutting board to keep desirable parts of the bait from falling off the working surface of the bait cutting board, while at the same time allowing undesirable parts of the bait to be easily swept under the rail and into the water below. The rail may be omitted from the near edge of the perimeter to provide a user with easier access to the working surface of the bait cutting board.