Gordon Graydon Memorial Secondary School
Address
1490 Ogden Avenue Mississauga , Ontario , L5E 2H8 Canada
Information
Funding type	Public
Founded	1956
Closed	2018
School board	Peel District School Board
Superintendent	Paul daSilva
Principal	Jeff Schust
Grades	9 - 12
Enrollment	600 [1] (September 2016)
Language	English
Colour(s)	Green, Gold
Mascot	The Hawk
Team name	Graydon Hawks
Website	http://schools.peelschools.org/sec/gordongraydon

Gordon Graydon Memorial Secondary School was a high school that served Grades 9 to 12 in Mississauga, Ontario, Canada. The school opened in 1957, and celebrated its 50th anniversary on May 26, 2007. It was named after Gordon Graydon, a Canadian politician who died in 1953. The school's slogan was "Palma Per Ardua": "Success through Hard Work".

A report by school board staff proposed that the school be closed in June 2019.^[2]

On January 24, 2017, the Peel District School Boards Pupil Accommodation Review (PAR), voted in favour of the school closing in June 2018. In an effort to accommodate the students, Gordon Graydon's vocational and autism spectrum disorder (ASD) programs were relocated to Glenforest Secondary School for 2018-2019 school year. In addition, Graydon's graphic design and international business programs (GDM/IBT) were moved to T.L. Kennedy Secondary School for the 2018-2019 school year. Construction at both T.L. Kennedy and Glenforest secondary schools were needed to accommodate the incoming students. In December 2020 the Mississauga Continuing and Adult Education Centre moved into the former Gordon Graydon Memorial Secondary School building.^[3]

• Deborah Chow, filmmaker, director, screenwriter
• Rodrigo Leal, actor, model

• List of high schools in Ontario

• Official website

43°35′09″N 79°34′22″W / 43.5857°N 79.5727°W / 43.5857; -79.5727