A manual transmission for a vehicle, in which any one of a plurality of forward shift stages and a reverse shift stage can selectively be established by movement of a shift member operatively associated with the selecting and shifting operations of a change lever, and the shift member is restrained from moving to a position in which the reverse shift stage is established, by the abutment of the shift member against an engage portion provided on a restraining member which is connected to a drive device and adapted to be moved from an inoperative position to an operative position during forward travelling of the vehicle, wherein the restraining member is provided with an abutment portion against which the shift member is abutable, and the abutment portion is urged by a movement of the shift member operatively associated with the operation of the change lever, thereby forcedly returning the restraining member from the operative position to the inoperative position. When the restraining member has been stuck at the operative position for any reason, the restraining member can be returned to the inoperative position so as to establish the reverse shift stage.