A vehicle lamp wherein a mounting member 20A for mounting and fixing a lamp unit 11 onto a vehicle body is projected from the outer surface of a synthetic-resin lamp body 12 forming part of the lamp unit 11. The mounting member 20A is formed of synthetic-resin and incorporated into the lamp body 12 by welding. A material greater in strength than the lamp body 12 is used as the material of the mounting member 20A to secure sufficient strength for the mounting member 20A. The quantity H of projection of the mounting member 20A from the outer surface of the lamp body 12 is made smaller than the quantity of projection of any conventional mounting member, so that the depth of a lamp chamber can be set greater.