The 2015 Pan American Games, officially the XVII Pan American Games and commonly known as the Toronto 2015 Pan-Am Games, were a major international multi-sport event celebrated in the tradition of the Pan American Games, as governed by Pan American Sports Organization (PASO). The games were held from July 10 to 26, 2015 in Toronto, Ontario, Canada; preliminary rounds in certain events began on July 7, 2015. These were the third Pan American Games hosted by Canada, and the first in the province of Ontario. The Games were held at venues in Toronto and 17 other Golden Horseshoe communities. The Pan American Games and 2015 Parapan American Games were organized by the Toronto Organizing Committee for the 2015 Pan and Parapan American Games (TO2015).

The Pan American Games is a continental multi-sport event in the Americas featuring summer sports, in which thousands of athletes participate in a variety of competitions. The competition is held among athletes from nations of the Americas, every four years in the year before the Summer Olympic Games. It is the second oldest continental games in the world. The only Winter Pan American Games were held in 1990. In 2021, the Junior Pan American Games was held for the first time specifically for young athletes. The Pan American Sports Organization (PASO) is the governing body of the Pan American Games movement, whose structure and actions are defined by the Olympic Charter.