The portable camping sink includes a hollow rectangular housing with top, bottom, left, right and rear walls and an open front. A basin is hinged to the front of the bottom wall and is movable between a closed position where it closes the front and an operative position lying at a right angle to the front where it can function as a sink. Locks and straps maintain the basin in its inoperative or operative positions. A water container has a size and shape allowing it to be inserted into the housing and includes a spout overlying the basin when the basin is in its operative position. Racks or shelves are hinged to the housing sides. Straps allow the portable sink to be suspended from the trunk of a tree during use. Shoulder straps allow a person to carry the camping sink on his back.