A vehicle lamp (100) includes a light source (10), a lens (20), a housing (30), and a vent portion (40). The housing (30) is combined with the lens (20) to form a lamp space (50) in which the light source (10) is disposed. The lamp space (50) includes a narrow gap region (50a) having a width of 10 mm or less between the lens (20) and the housing (30). This width corresponds to the distance between them. The vent portion (40) is provided on the housing (30) at a position facing the narrow gap region (50a).