Houko Kuwashima (桑島法子, Kuwashima Hōko, born 12 December 1975) is a Japanese voice actress and singer. She is capable of playing a variety of roles, ranging from young boys to feminine women. She is affiliated with Aoni Production. Her first major role was as Yurika Misumaru in Martian Successor Nadesico and she has had lead or major roles in a number of others.

She has voiced characters in several video games. On film, she has had voice roles as the title character in Princess Arete and in Space Battleship Yamato 2199, Fullmetal Alchemist: Conqueror of Shamballa and Doraemon: Nobita in the Robot Kingdom.

She has performed songs for anime, such as "Tokihanate!" (解き放て), which was used as the opening theme to Blue Gender.