Niagara is a neighbourhood in Toronto, Ontario, Canada, located south of Queen Street West; it is usually bordered by Strachan Avenue to the west, Bathurst Street to the east, and the railway corridor to the south, and so named because Niagara Street runs through the centre of it. The eastern portion of this area (with what is now called the Fashion District) was first planned as theNew Town Extension when Toronto was incorporated as a city. The area was developed as a residential area for the workers of industries located along the CN and CP railway corridors. It remains a working-class neighbourhood that has seen the development of new condominium apartment buildings.
- St. Mary Catholic School is a Roman Catholic elementary school located at 20 Portugal Square. Founded in 1852 by the Sisters of St. Joseph and the Christian Brothers, it is one of the oldest parish schools in the City of Toronto. In 1918, the present old building was erected on Adelaide Street. In 1972, the newer section was opened. It offers education from Junior Kindergarten to Grade 8.
- Niagara Street Junior Public School is a public elementary school at the intersection of Adelaide Street West and Niagara Street. The original school was built in 1874. It is a small school providing Junior Kindergarten to Grade 6 education.