Don Mills has been consistently represented in the
International Math Olympiad,
International Physics Olympiad, and the
DECA International Career Development Conference. In addition, the school has also performed well in
chemistry competitions, including the
University of Waterloo's Avogadro and Chem 13 competitions, as well as the Canadian Chemistry Olympiad.
The Bulldog DMCI's student-run newspaper,
The Bulldog, is one of the few weekly high school publications in
Ontario, and has been honoured at the
Toronto Star High School Newspaper Awards.
Reach for the Top DMCI's
Reach for the Top team placed seventh at the Ontario Provincials in the 2010–2011 season, their best achievement in the competition.
YPS In 1998, DMCI was asked by the
Toronto District School Board to represent Canada at the inaugural Young People's Summit (YPS), held in conjunction with the annual meeting of
G8 countries in
Birmingham,
England.
Northern Lights Don Mills is also home of the award-winning Northern Lights Show Choir. Northern Lights is Ontario's longest-running high school
show choir. This group performs throughout the community and attends performances and competitions in the US and Canada.
DECA DECA is a leadership building international business competition with over 200,000 members internationally. ==Notable facts and controversies==