Vehicular headlamp

A vehicular headlamp (10) has: a light-emitting module (22); a movement mechanism (21) that moves the light-emitting module (22); and a reflector (24) having a reflecting surface configured to reflect, toward the front of the lamp, light emitted from the light-emitting module (22) and form a plurality of light distribution patterns in accordance with a position of the moved light-emitting module (22). The movement mechanism (21) is configured to be capable of translating the light-emitting module (22) to a plurality-of positions.