A transmission mount is provided that has a stopper which is separately assembled from an insulator to obtain an improved attenuation effect. The transmission mount includes a transmission mount bracket and an insulator that has a body press-fitted into the transmission mount bracket and a center core disposed therein. The insulator includes a base supported on a bottom surface of the transmission mount bracket and a connector that connects the body and the base. A stopper is provided that includes a vertical movement restrictor configured to come into contact with a lower portion of the body and an upper portion of the base to restrict a vertical movement of a center core and a lateral movement restrictor configured to come into contact with sides of the base to be latched with the sides of the base to restrict a lateral movement of the center core.