A corner shelf securement system for attaching to a pair of walls and forming to a corner joining the walls includes a pair of walls joined together to define a corner between the pair of walls. A board has a bend defining a first section being perpendicular to a second section such that the board is L-shaped. A shelf is coupled to the board, and a plurality of braces is coupled to the board and to the shelf. The plurality of braces support the shelf in a perpendicular position relative to the board. A fastener is mounted on the board and is engageable to the pair of walls such that the bend is positioned within the corner.