Ultraman Tiga (ウルトラマンティガ, Urutoraman Tiga) is a Japanese tokusatsu TV drama and the twelfth show in the Ultra Series. Produced by Tsuburaya Productions, Ultraman Tiga had aired at 6:00 pm and aired between September 7, 1996, to August 30, 1997, with a total of 52 episodes with five movies (three being crossovers, two being direct sequels to the series as well as a comic book series).

It was broadcast after a franchise hiatus of over 15 years, set in a universe different from all previous series and updated with a new look and feel. Tiga is the first Ultraman with multiple combat modes and non-red colors. It is one of the most popular entries in the Ultra Series. Because of Tiga's popularity, he had more exposure on TV and movies than any other Heisei Ultraman. Ultraman Tiga was also dubbed in English by 4Kids Entertainment and broadcast in the United States as part of the FoxBox programming block on Fox Broadcasting Company affiliates, making it the fourth Ultra Series to air in the United States after Ultraman, Ultra Seven and Ultraman: Towards the Future. A modern retelling of the drama titled Ultraman Trigger: New Generation Tiga was released on July 10, 2021, as a commemoration for the drama's 25th anniversary.