A light emitting device includes lead electrodes, and a housing including a resin molded body. The resin molded body has a first outer surface facing toward a first direction, a second outer surface facing toward a second direction perpendicular to the first direction, and a recess having an opening on the second outer surface and a bottom opposite to the opening in the second direction. Each of the lead electrodes includes an outer lead portion, and an inner lead portion to define the bottom of the recess. The outer lead portion is provided on the first outer surface and includes an inward surface and an outward surface opposite to the inward surface. The inward surface faces the first outer surface and is covered by a light-transmissive covering film. The outward surface is opposite to the inward surface in the first direction and is exposed from the light-transmissive covering film.