Yatterman (Japanese: ヤッターマン, Hepburn: Yattāman) is a Japanese anime television series broadcast from January 1, 1977 to January 27, 1979, comprising 108 episodes. It is the second and longest show in the Time Bokan series by Tatsunoko Productions. The series succeeded Time Bokan and preceded Zenderman. It was also the final series to be produced by company founder Tatsuo Yoshida prior to his death.Fragments of a mysterious stone known as the Skull Stone (ドクロストーン, Dokurosutōn) are scattered across the globe. Once all four pieces are assembled, the location to the world's largest deposit of gold will be revealed. The villainous Doronbo (ドロンボー, Doronbō) Gang are searching for the Skull Stone. Standing in their way are Gan and Ai who become the masked heroes Yatterman-1 and Yatterman-2. The two are aided in their adventures by a large mechanical dog Yatterwan.

Unlike previous series in the Time Bokan franchise, Yatterman does not cover any specific time/space travel. Instead, the places where the hero travel to and the individuals they encounter are either a homage or parody. The fictional characters or places are usually represented by purposely misspelled names or familiar actions. For example, a revolution leader is named Yashington as a homage to George Washington; and a place resembling ancient Japan is named Yametai ((I) want to stop), as a spoof of Yamatai.