This invention pertains to a paint brush bristle clamp which can be removed after paint brush use, and facilitates cleaning of paint from the brush. A removable paint brush bristle clamp comprising: (a) a pair of opposed end walls; (b) a first side wall located between the pair of end walls and joined thereto; (c) a second side wall opposed to the first side wall, the second side wall being joined at one end to one of the end walls, the opposite end of the second side wall being free and having a first lip formed thereon; (d) a second lip formed on one end of one of the end walls, adjacent to the lip formed on one edge of the adjacent side wall, said second lip being adapted to mate with the first lip on the side wall to thereby provide an opening and closing action.