Team Logo. The Montreal Expos were a team in Major League Baseball. They played in the National League. In 2005, they moved to Washington, DC and became the Washington Nationals. Retrieved from "https://prosportsteams.fandom.com/wiki/Montreal_Expos?oldid=15996" Categories: Former MLB teams Teams in Quebec Teams in Montreal Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.