Stephen Lewis Secondary School is a high school located in the Churchill Meadows neighbourhood of the city of Mississauga in Ontario, Canada and is a part of the Peel District School Board. It is one of two schools bearing this name. It opened in September 2006. Its feeder schools are Ruth Thompson Middle School and Erin Centre Middle School.

Every year, the graduating class hosts a dinner and raises money for the organisation Helping Hands for Honduras. In December, the staff and students contribute to Share the Joy, a program that assists Peel families during the holiday season.

On May 16, 2012, students hosted the second annual Relay for Life event. Over 300 students, staff and community members participated in this all-night fundraiser. The school raised $30,000, which was donated to the Canadian Cancer Society.

The athletic teams have high spectator turnout during home games. These athletic teams are represented by the school's mascot, known as the Lewis Lynx and teams are referred to as a lynx pack. Sports include: Basketball, Soccer, Rugby, Tennis, Swimming, Cross Country, Cricket, Flag Football, Lacrosse, Baseball, Volleyball, Track & Field, and Wrestling.

Clubs include Amnesty International, DECA, Animé Club, Hack Club, Model UN, Arts Productions, Yearbook committee, Chess Club, a Dance Club, Green Revolution, Design and Build Club, Poets @ Lewis (poetry club), Sears Drama Festival, reading clubs, music clubs and game clubs.

All students and staff are assigned to one of the four villages upon registration. The Stephen Lewis Villages are named after four Canadian heroes of social justice: June Callwood, Craig Kielburger, Agnes Macphail and David Suzuki.

Stephen Lewis Secondary School has a modern architectural design from the interior and exterior. The building has three floors, and is connected to Applewood School, a school for students aged 14 to 21 with developmental disabilities. Campus facilities include a broadcast studio, a darkroom for photography, a large cafetorium (cafeteria/auditorium hybrid), a three-section gym, dance and photography studios, science labs and an auto workshop. Outside the building is a multi-purpose field and a track that is shared by the community.

• Education in Ontario
• List of secondary schools in Ontario
• Churchill Meadows

• Stephen Lewis Secondary School website