The Ottawa Technical Secondary School (name changed as of May 1st, 2010) is an Ottawa-Carleton District School Board high school in Ottawa, Ontario, Canada. It specializes in teaching students trades. It is located at 485 Donald Street, just east of the Vanier neighbourhood of Ottawa. Until 2001, it was known as McArthur High School . From 2001 until 2010 it was known as Ottawa Technical Learning Centre.