The Northern Dancer Turf Stakes is a Canadian Thoroughbred horse race held annually at Woodbine Racetrack in Toronto, Ontario in mid-September. A Grade I event with a current purse of Can$300,000, it is run at a distance of 1+1⁄2 miles on Woodbine's E. P. Taylor turf course.

Inaugurated as the Niagara Handicap, it was first raced on dirt at the Fort Erie Racetrack. In 1957 the race was changed to run on turf and was moved to the Woodbine Racetrack in 1985 where for 1986 only, it was run on dirt. The race became part of the Breeders' Cup program and the name was amended to the Niagara Breeders' Cup Handicap. In 2006, the event was renamed to honour Canada's most famous racehorse, Northern Dancer.

Over the years, the race has been run at various distances:

• 1+1⁄16 miles : 1953-1956
• 1+1⁄8 miles : 1957-1975
• 1+1⁄4 miles : 1990-1994
• 1+1⁄2 miles : 1976-1989, 1995 to present

Speed Record:

• 2:25.87 - Strut the Stage (2004) at the current distance of 1+1⁄2 miles

Most wins:

• 2 - Marshall Ney II (1957, 1958)
• 2 - Strut the Stage (2003, 2004)
• 2 - Wigmore Hall (2011, 2012)
• 2 - Johnny Bear (2017, 2018)

Most wins by an owner:

• 8 - Sam-Son Farm (1991, 1996, 1997, 1998, 2002, 2003, 2004, 2020)
• 5 - Gardiner Farm (1967, 1968, 1970, 1974, 1976)

Most wins by a jockey:

• 4 - Todd Kabel (2002, 2003, 2004, 2006)
• 3 - Sandy Hawley (1970, 1996, 1997)

Most wins by a Trainer:

• 6 - Lou Cavalaris, Jr. (1966, 1967, 1968, 1970, 1974, 1976)
• 6 - Mark Frostad (1996, 1997, 1998, 2002, 2003, 2004)

• List of Canadian flat horse races