Lacrosse
- Major League Lacrosse (MLL) is founded by Jake Steinfeld, Dave Morrow and Tim Robertson.
- The Toronto Rock beat the Rochester Knighthawks 13–10 to win the National Lacrosse League Championship.
- The Victoria Shamrocks win the Mann Cup.
- The Edmonton Miners win the Founders Cup.
- The Whitby Warriors win the Minto Cup.
Read more about this topic: 1999 In Sports