Casshan, also known in Japan as Neo-Human Casshern (Japanese: 新造人間キャシャーン, Hepburn: Shinzō Ningen Kyashān), is an anime series created by Tatsunoko Production founder Tatsuo Yoshida in 1973.

The Casshern franchise also includes a 1993 original video animation titled Casshan: Robot Hunter, and a 2004 live-action adaptation titled Casshern. In October 2008, a reboot of the franchise Casshern Sins premiered. In anticipation of the upcoming series, a DVD box set of the original series, Neo-Human Casshern Complete DVD-Box "All Episodes of Casshern", was released in Japan on September 24, 2008. Casshern also appears in Tatsunoko Fight and Tatsunoko vs. Capcom: Ultimate All-Stars as a playable character. At Anime Expo 2013, Sentai Filmworks announced that they had signed a deal with Tatsunoko to release some of their catalog, with Casshan being confirmed as one of the characters involved. Sentai Filmworks released the series on DVD and Blu-ray Disc in the United States on March 4, 2014.