Erdeniin Bat-Üül (Mongolian: Эрдэнийн Бат-Үүл, born 1 July 1957) is a Mongolian politician from the Democratic Party and a former[1] mayor of Ulaanbaatar City and governor of the Capital City.
[2] In 1988, Bat-Üül was part of organizing a political group, which in December 1989, would become the first to articulate dissent against the ruling Mongolian People's Revolutionary Party.
Shortly afterwards, all members of the group were arrested, but set free again on lack of evidence.
He was awarded with the title of Hero of Mongolia for his role in the 1990 democratic revolution on December 10, 2009.
He stepped down on July 7, 2016, replaced by Mongolian People's Party's Sunduin Batbold.