Ultraman Mebius (ウルトラマンメビウス, Urutoraman Mebiusu?) is a Japanese television series produced by Tsuburaya Productions and Chubu-Nippon Broadcasting. It is the 22nd season and 40th anniversary production in the Ultra Series, which first began in 1966. It premiered on the Tokyo Broadcasting System on April 8, 2006. Unlike the two prior entries, Ultraman Nexus (Urutoraman Nekusasu,2004) and Ultraman Max (Urutoraman Makussu,2005), Mebius was moved from Saturday mornings to Saturday evenings at 05:30. "Mebius" (メビウス, Mebiusu?) is the Japanese pronunciation of Möbius.

The series opens with the introduction of the rookie Ultraman Mebius, who is sent to Earth by the Father of Ultra. The series is set 40 years after the shows of Ultraman (Urutoraman, 1966), and makes many references from Ultra Q(Urutora Q,1966) through Ultraman 80(Urutoraman Eitei,1980).