Twentieth Street Junior School is a public elementary school in Etobicoke, Ontario, Canada. It is located on the corner of Lakeshore Boulevard and Twentieth Street. There has been a school on this site serving the Lakeshore community since 1920. In 1993, the original building and its additions were demolished and a new structure was constructed which opened in September 1994. The school is fully accessible and is close to a host of community recreation facilities such as Lakeshore Lions Arena and Gus Ryder Pool. Twentieth Street Junior School is a short walk from Lake Ontario.