A door handle comprising: a casing inside which an accommodation space is provided; and a lamp unit disposed in the accommodation space, wherein: the lamp unit includes a light emission element, a circuit board on which the light emission element is mounted, a housing that supports the circuit board, and a light guiding lens that guides light emitted from the light emission element in a predetermined direction; and the light guiding lens includes an incident surface that receives light emitted from the light emission element, and an emission surface that emits the light entering in the light guiding lens through the incident surface and is positioned below the incident surface; and the emission surface is positioned above a lower surface of the casing, the door handle characterized in that the light guiding lens has a columnar shape extending in an up-down direction; the casing includes a light control surface provided at a lower side of the light guiding lens to be continuous with an outer surface of the light guiding lens; the light control surface has a shape flared downward within a predetermined range; the door handle is provided in a vehicle; and in a cross-section of the light guiding lens taken along a right-left direction of the vehicle, a slant angle of an outer edge of the light guiding lens in the right-left direction with respect to an up-down direction of the vehicle is larger than a slant angle of an inner edge of the light guiding lens in the right-left direction with respect to the up-down direction. a casing inside which an accommodation space is provided; and a lamp unit disposed in the accommodation space, wherein: the lamp unit includes a light emission element, a circuit board on which the light emission element is mounted, a housing that supports the circuit board, and a light guiding lens that guides light emitted from the light emission element in a predetermined direction; and the light guiding lens includes an incident surface that receives light emitted from the light emission element, and an emission surface that emits the light entering in the light guiding lens through the incident surface and is positioned below the incident surface; and the emission surface is positioned above a lower surface of the casing, the door handle characterized in that the light guiding lens has a columnar shape extending in an up-down direction; the casing includes a light control surface provided at a lower side of the light guiding lens to be continuous with an outer surface of the light guiding lens; the light control surface has a shape flared downward within a predetermined range; the door handle is provided in a vehicle; and in a cross-section of the light guiding lens taken along a right-left direction of the vehicle, a slant angle of an outer edge of the light guiding lens in the right-left direction with respect to an up-down direction of the vehicle is larger than a slant angle of an inner edge of the light guiding lens in the right-left direction with respect to the up-down direction. the lamp unit includes a light emission element, a circuit board on which the light emission element is mounted, a housing that supports the circuit board, and a light guiding lens that guides light emitted from the light emission element in a predetermined direction; and the light guiding lens includes an incident surface that receives light emitted from the light emission element, and an emission surface that emits the light entering in the light guiding lens through the incident surface and is positioned below the incident surface; and the emission surface is positioned above a lower surface of the casing, the door handle characterized in that the light guiding lens has a columnar shape extending in an up-down direction; the casing includes a light control surface provided at a lower side of the light guiding lens to be continuous with an outer surface of the light guiding lens; the light control surface has a shape flared downward within a predetermined range; the door handle is provided in a vehicle; and in a cross-section of the light guiding lens taken along a right-left direction of the vehicle, a slant angle of an outer edge of the light guiding lens in the right-left direction with respect to an up-down direction of the vehicle is larger than a slant angle of an inner edge of the light guiding lens in the right-left direction with respect to the up-down direction.