The invention relates to a blow-off valve, comprising: - a flow housing (36) having a flow channel (38) between an inlet (40) and an outlet (42); - a valve seat (44) formed between the inlet and the outlet; - an actuator (10); - an actuation element (28), which can be moved translationally by means of the actuator; and - a control body (34), which is fastened to the actuation element and has a radially outer, peripherally closed lateral surface (46), at the axial end of which lateral surface a peripheral contact edge (56) is formed, which contact edge can be placed onto the valve seat and lifted from the valve seat, wherein the control body has, on the axial side facing away from the actuation element, a radially inner axial flow-incidence surface (66) and has a wall (54), which extends at least radially inward from the lateral surface (46) and in which at least one opening (64) is formed, by means of which an interior (94) of the blow-off valve is fluidically connected to the flow channel. According to the invention, it is proposed that a radially outer annular outflow edge (78) of the axial flow-incidence surface is offset to the contact edge in the axial direction at most to such an extent that a first vector (84) directed radially outward from the outflow edge to the closest point of the contact edge includes at most an angle of 15° with a plane (86) spanned by the contact edge, and the at least radially extending wall having the at least one opening is offset to the contact edge and to the outflow edge axially toward the actuation element.