One Park Tower is a skyscraper located in the city of Mississauga, Ontario, Canada. It was completed in 2008, stands at 142 meters, and has 38 floors, making it the third tallest building in Mississauga as of 2011. One Park Tower was the tallest building in the city at the time of its completion, but was soon surpassed by the Absolute World towers, standing at 168 and 151 meters.