Abstract: A shelf clip for removably mounting a shelf on a wall, bookcase or the like. The shelf clip has two mounting posts extending rearwardly from an upstanding member for insertion into a pair of holes in the mounting wall. Retaining members extend from the front face of the upstanding member and are spring biased into an outward position. The retaining members include sharp ridges for engaging the edgewall of the shelf. When a shelf is placed on the clip, a force exerted by the shelf on the retaining members displaces them backwards towards the mounting wall and at least partially into a pair of slots formed in the upstanding member behind the retaining members. This creates a force on the upper mounting post to more firmly seat the post into the mounting wall hole and causes the retaining members to securely bit into the shelf edgewall. The retaining members have a shaped knife-like edge to prevent lateral movement of the shelf.