A vehicular headlamp comprising: a front lens body extending in a predetermined direction; a plurality of optical systems disposed along the predetermined direction behind the front lens body; and a control means, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems.