To provide a lighting fixture for vehicles, which includes an optical axis adjustment device having excellent mechanical strength regardless of a simple configuration.

A rotary support shaft part 30C of an optical axis adjustment device 30 has a spherical body part 41 and a spherically concave body part 51 in which the spherical body part 41 is fitted. When a lighting fixture 10 for vehicles is assembled in a vehicle, an extension direction from, for example, a fixed part of the spherically concave body part 51 to a housing 11 to, for example, a fixed part of the spherical body part 41 to a lamp unit 20 is configured to be almost coincident with a height direction of the vehicle.