A vehicular lamp includes a plurality of light sources arranged in a row; and a light guide configured to receive light emitted from the light sources on a rear surface thereof, and emit the light from a front surface thereof. The light guide includes: a base having a rear surface extending in an arrangement direction of the light sources; a plurality of rear surface projections protruding from the rear surface of the base; and a plurality of front surface projections protruding from a front surface of the base. The rear surface projections and the front surface projections are arranged in the arrangement direction to be spaced apart from one another, and are formed in a plurality of projection forming areas, respectively. Each of the front surface projections has a polyhedral shape including a plurality of faces that are successive in a circumferential direction thereof.