is a Japanese manga series written and illustrated by . It was serialized in Shueisha's manga magazine Weekly Young Jump from 1985 to 1996, with its chapters collected in 43 volumes. A live action film adaptation premiered in March 1990. A four-episode original video animation (OVA) adaptation by J.C. Staff was released from 1990 to 1992.
Written and illustrated by , Osu! Karate Club was serialized in Shueisha's manga magazine Weekly Young Jump from 1985 to 1996. Shueisha collected its chapters in 43 volumes, released from June 1986 to May 1996.
The manga was published digitally in English by from September 16, 2017, to June 11, 2019.
Another manga, titled , was first published in two-parts in Takeshobo's Kindai Mahjong Original on April 8 and May 8, 2013, and due to its popularity, it was later serialized in Kindai Mahjong starting on July 15 of that same year. Two volumes were released on November 27, 2013, and April 26, 2014.
A live action film adaptation, directed by TÃ Âru Murakawa, produced by Excellent Creative and distributed by Shochiku, premiered in Japan on March 17, 1990.
A four-episode original video animation (OVA) adaptation, animated by J.C.Staff and directed by Osamu Sekita, was released from October 1, 1990, to July 25, 1992.
A video game was released by Culture Brain for the Super Famicom on August 26, 1994.