Helene Montreuil or Micheline Montreuil (born June 1952) is a Canadian lawyer, teacher, writer, radio host, trade unionist and politician. As a transgender woman, she first became known for her legal struggles in front of the Canadian Human Rights Tribunal, the Superior Court and the Court of Appeal in Quebec. She is also known for her involvement as a politician. From 1986 to September 9, 2016, she used the first name of Micheline as she was known as Micheline Montreuil. Since September 9, 2016, she uses only the first name of Helene and she is now known under the name of Helene Montreuil.