A vehicular lighting unit includes: a first light source in the form of an LED for providing illumination forward or rearward of a vehicle body, the first light source being mounted on one surface of a base plate in an orientation corresponding to the direction of the illumination; a second light source in the form of an LED for providing illumination laterally outward of the vehicle body, the second light source being mounted on another surface of the base plate; and a reflection section provided near the second light source for reflecting light emitted from the second light source laterally outward of the vehicle body.