A crossbow grip guard for preventing the fingers of an associated user from extending above a top portion of a stock of an associated crossbow. The crossbow grip guard may be adapted to be retro-fitted to an existing crossbow and may comprise a main body and an outwardly extending member that extends away from an exterior surface of the main body to create an obstacle or barrier positioned along a length of the main body and is designed to prevent the fingers of the associated user from extending above the top portion of the stock when firing the crossbow.