VEHICULAR LAMP

A vehicular lamp includes: a light source unit; a housing inside of which the light source unit is disposed and which has a work hole formed therein on a rear side thereof; and a cover member detachably attached to the work hole of the housing. The cover member includes a cover main body configured to close the work hole, a recess portion formed by concaving an outer surface of the cover main body, and a protrusion portion protruding from an inner surface of the cover main body corresponding to the recess portion, and the protrusion portion forms an inclined surface inclined in a diameter-expanding direction from an inner circumferential side toward an outer circumferential side of the cover main body when the cover main body is viewed in a cross-sectional view in an axial direction.