List of Kenichi: The Mightiest Disciple episodes

Kenichi: The Mightiest Disciple is an anime television series based on Syun Matsuena's manga series of the same name. The series was produced by TMS Entertainment and directed by Hajime Kamegaki. It was broadcast on TV Tokyo from October 8, 2006, to September 29, 2007. The first opening theme for episodes 1–25 is "Be Strong", performed by Kana Yazumi, and the second opening theme for episodes 26–50 is "Yahhoo" (ヤッホー), performed by Diva × Diva (Miho Morikawa with Akira Asakura). The series' first ending theme for episodes 1–15 is "Kimi Ga Irukara" (君がいるから), performed by Issei Eguchi. The second ending theme for episodes 16–25 is "Catch Your Dream", performed by Joanna Koike. The third ending theme for episodes 26–45 is "Run Over", performed by Joanna Koike. The fourth ending theme for episodes 46–49 is "Kokoro Kara no Message" (心からのメッセージ) is performed by Sakura. The series' last episode uses the first opening theme "Be Strong" by Kana Yazumi as ending theme.

In North America the series was licensed by Funimation in May 2008. The series was broadcast on Funimation Channel. The rights to the series expired in 2018. In December 2020, Discotek Media announced that they had licensed the anime television series and it would have an upscale release slated for 2021. The series returned to Funimation's streaming service in May 2021. Crunchyroll added the series to their catalog in September 2021.

An 11-episode original video animation (OVA) series produced by Brain's Base was released from March 14, 2012, to May 16, 2014. The story continues from the Ragnarok Arc entering the Yomi arc. The main cast for the OVA series is the same from those of the anime series except for Rie Kugimiya who replaced Tomoko Kawakami as Miu and Yuzuru Fujimoto who replaced Hiroshi Arikawa as her grandfather Hayato. The episodes later aired in 2014 on Tokyo MX and BS11, with the title Kenichi: The Mightiest Disciple – The Attack of Darkness (史上最強の弟子ケンイチ 闇の襲撃). Iori Nomizu performed the opening theme "Wish" (for episodes 4–9) and the ending themes "Glory Days" (for episodes 1–3) and "Breathless" (for episodes 4–9). During its television broadcast, the series featured the opening theme "Higher Ground", performed by Tomokazu Seki, and the same original second ending theme "Breathless", by Iori Nomizu. In January 2024, Discotek Media announced that they had licensed the OVA, and is set to be released on a Blu-ray set with an English dub on May 28 of the same year.