A vehicle headlight (1) serving as a vehicle lamp is provided with: a cylindrical holder (40) which extends in a longitudinal direction that is a depth direction and has an opening (40FO) formed at a front end; a light source (51, 52) which is housed in the holder (40); and a reflector (20) which is housed in the holder (40) and reflects light (LL, LH) emitted from the light source (51, 52) toward the opening (40FO). In an outer wall (20B) of the reflector (20), a pair of recesses (24, 26) recessed toward the inside of the reflector (20) from positions opposite each other are formed along the longitudinal direction, in the holder (40), a pair of protrusions (44, 46) protruding toward the inside of the holder (40) from positions opposite each other and extending in the longitudinal direction are provided, and the protrusions (44, 46) are fitted into the recesses (24, 26) over the entire lengths in the longitudinal direction of the recesses (24, 26).