Abstract: A baby restraint device is disclosed which securely retains a baby on a seat. The device has a base with an elongate, shallow shape and an upstanding retainer positioned to define two wings of the base. The wings have holes for securely being screwed or bolted to the seat. Each wing also has a depression for receiving the undersides of the baby's thighs or bottom. The retainer has a concave shape toward the baby to retain the baby in the seat. The retainer and wings with the depressions securely fastened to the seat prevent twisting or sliding of the baby past either side of the retainer. The restraint device is so formed that it can be attached to a wall and the retainer can be used as a hook, or it can serve as a book end with the edge of the base and the tip of the retainer both engaging the side of a book.