Shin-Ei Animation Co., Ltd. (Japanese: シンエイ動画株式会社, Hepburn: Shīn'eī Dōga Kabushiki-gaisha) is a Japanese animation studio owned by TV Asahi and founded in Tokyo in 1965 as A Production by Daikichirō Kusube, who was previously an animator for Toei Animation and a successor of both former Asahi Eigasha that was founded in 1936 and Shin-Asahi Eigasha that was founded in 1938.

[1][2] Shin-Ei Animation's history begins in December 1965 as A Production (エイプロダクション, Ei Purodakshon) by Daikichirō Kusube who was then a former animator at Toei.

In 2010, TV Asahi had acquired the animation studio.

[3] In April 2017, SynergySP became a subsidiary of the company.

Works currently airing on Japanese television are in bold.