The shield for a paint roller protects both the user and the environment from accidental spills or splashes of paint when using a paint roller. The shield includes a frame member having a pair of opposed side edges, a front edge and a rear edge. A front wall is mounted to the front edge of the frame member and extends substantially orthogonal to the frame member. A rear wall is mounted to the rear edge of the frame member, the rear wall being substantially parallel to the front wall so that an open region is defined between the front and rear walls for releasably receiving the roller brush of the paint roller therebetween. An upper portion and a lower portion of the roller brush remain exposed when the shield is mounted on the paint roller. The frame member is releasably secured to an axle of the paint roller.