Alderwood Collegiate Institute

Alderwood Collegiate Institute (Alderwood CI, ACI, or Alderwood), named Alderwood Secondary School and Alderwood High School prior is a former public high school that existed from 1955 to 1983 under the governance of the Etobicoke Board of Education (now part of the Toronto District School Board) and that served the Alderwood neighbourhood in the former city of Etobicoke in Toronto, Ontario, Canada.

The school merged with New Toronto Secondary School to form Lakeshore Collegiate Institute in 1983. The portion of the Alderwood property was transferred to the TDSB's realtor arm, Toronto Lands Corporation (TLC) in 2011 and sold to Urbancorp, a housing developer in August 2012.