PROBLEM TO BE SOLVED: To provide a lighting device that can widely diffuse ions generated by an ion generating unit.SOLUTION: The lighting device comprises a light source part, the ion generating unit, and a housing part that houses the ion generating unit. An emitting part including an emitting surface for emitting light from the light source part is provided around the housing part. The housing part includes a discharge port for discharging ions generated by the ion generating unit. The discharge port discharges the ions in the direction of an outer edge part of the emitting part.