Great Lakes Secondary School

Great Lakes Secondary School (GLSS) is a high school in Sarnia, Ontario. It was previously named St. Clair Secondary School, and it was renamed after being consolidated with Sarnia Collegiate Institute and Technical School. It is managed by the Lambton Kent District School Board.

Team name: Wolfpack

School colours: light blue, silver and black

Grades: 9–12

Sports
Great Lakes Secondary School has teams that are competitive at the board, regional, provincial, and national level. Teams include:(1)


 * Badminton
 * Baseball
 * Basketball (Girls AA OFSAA Silver 2009,2010)
 * Cross Country Running
 * Football(2015 OFSAA 8-man Champs)
 * Golf
 * Hockey
 * Reach For The Top (Trivia)
 * Rugby (Girls AA OFSAA Bronze 2010)
 * Soccer
 * Swimming
 * Tennis
 * Track and Field
 * Volleyball
 * Wrestling

Music
GLSS has strong instrumental and vocal music programs. The bands (Grade 9, Junior, Senior, and Jazz) compete at local and out of town music festivals. They also go to every school in the county once a year to play in an assembly. Most years the school puts on a dramatic musical production.

The school has a group of singers in its vocals class. They often put on shows for the community to for a small price.

Music is common in the Great Lakes Revue, an annual fundraising event where different students and groups of students perform for anyone who buys a ticket.

Notable graduates
**graduated when school's name was St. Clair Secondary School
 * Kim Mitchell, Canadian rock artist **
 * Mike Weir, professional golfer **
 * Nail Yakupov, professional hockey player **