The invention discloses a glass clamp. The glass clamp comprises a clamp main body which is provided with a clamping groove used for clamping glass, and a hanging assembly which is positioned at the top of the clamp main body and is used for connecting an external structure; the clamp main body comprises a front glass clamp and a rear glass clamp which are connected with each other and define the clamping groove, and a connecting piece which is used for fixing the front glass clamp and the rear glass clamp; a first rack and a second rack are respectively arranged on the opposite sides of the front glass clamp and the rear glass clamp, and the first rack and the second rack are in vertical engagement connection. In the scheme of the invention, the first rack and the second rack are fastened and buckled by locking a glass connecting piece, so that the purpose of clamping the glass is achieved; a hole does not require to be formed in the glass, so that the original internal stress balance of the glass is prevented from being disturbed; moreover, a limiting effect is achieved through a tooth engagement structure, and the situation that the glass is broken because of stress concentration caused by overexerting when screw threads of the glass clamp are locked is prevented.