Asei Kobayashi (小林 亜星, Kobayashi Asei, 11 August 1932 – 30 May 2021) was a Japanese composer. He was also a lyricist, actor, and multi-tarento. He could also sing songs and advertisement songs.
Kobayashi was represented by Astro Music. He was the director of the Japan Songwriters Association (J-scat). Kobayashi served as the first president of the Dai Nihon Piman-sha Renmei (Dai Pi Ren). His songs are used in advertisements and television themes.
Asei also composed the music for the 1990 Famicom video game Niji no Silkroad. A soundtrack CD was later released titled Rainbow Silkroad Image Album WINDY ROAD.
He also composed The TV Asahi song in 1977 when the television station changed its name to its current name.