The University of Ontario Institute of Technology, corporately branded as Ontario Tech University or Ontario Tech, is a public research university located in Oshawa, Ontario, Canada. Ontario Tech's main campus is located on approximately 400 acres (160 ha) of land in the northern part of Oshawa. It operates a secondary campus in the downtown area of Oshawa.

The school was founded in 2002 via the University of Ontario Institute of Technology Act, 2002, passed by the Government of Ontario.