Louise Arbour Secondary School is a high school located in Brampton, Ontario, operating under the Peel District School Board. It was established in 2010 to accommodate those who live in north Brampton between Sandalwood Heights Secondary School and Mayfield Secondary School. A social justice focus infuses all elements of the curriculum in order to support students to become socially responsible citizens of the world. The school offers a wide range of programs in all curricular areas along with Specialist High Skills Major programs in Arts and Culture as well as Hospitality and Tourism. Science, mathematics and technology are particular focus areas in the school.

The school is named for Louise Arbour, former Justice of the Supreme Court of Canada and UN High Commissioner for Human Rights, and since 2017 the United Nations Secretary-General's Special Representative for International Migration.

• Education in Ontario
• List of secondary schools in Ontario

43°45′36″N 79°46′01″W / 43.760°N 79.767°W / 43.760; -79.767