The invention provides a vehicular lamp, which can serve as a fog lamp and a daytime running lamp. The vehicular lamp comprises a lens equipped on the front and a light source equipped on the rear side. The light source which is generally cross-shaped comprises a horizontal lighting part applied for emitting light penetrating the lens and then projecting forwards so as to form fog lamp light-distribution patterns on an imagined vertical screen facing the front of a vehicle; and a vertical lighting part applied for emitting light penetrating the lens and then projecting forwards so as to form daytime running light-distribution patterns on the imagined vertical screen. The lens is configured to make light traveling from the focus of the lens and entering the lens emitted in a way to be parallel or substantially parallel to the optical axis of the lens on the vertical section and also emitted as diffusing light on the cross section. The focus of the lens can be equipped on or adjacent to the center of the horizontal lighting part lower edge.