A light emitting device includes: a resin package including: a first lead including: at least one notch extending from an upper surface of the first lead to a lower surface of the first lead, a first groove formed in the upper surface of the first lead, and at least one second groove connecting the first groove with the at least one notch, and a second lead, and a resin body including: a first resin portion, a second resin portion, a part of the second resin portion being disposed in the first groove, a third resin portion disposed between the first lead and the second lead, and a first resin connecting portion connecting the first resin portion with the second resin portion, at least a part of the first resin connecting portion being disposed in the at least one second groove; a light emitting element; and a light reflecting member.