The Toronto Rock was the first Canadian franchise in the professional National Lacrosse League (NLL).
The Rock, founded in 1998, played its first season in Hamilton where the club was called the Ontario Raiders. The franchise relocated to Toronto in 1999 and enjoyed immediate success, winning four NLL championships (1999, 2000, 2002 and 2003) in five years.
The Rock also captured NLL titles in 2005 and 2011. With six titles, the Rock is tied with the Philadelphia Wings for the most NLL championships in league history. Originally, the Rock played its home games at Maple Leaf Gardens. When the arena closed, the Rock moved to Scotiabank Theatre. In December 2021, the team returned to Hamilton, but the franchise has maintained its Toronto Rock moniker.