The Wayne Gretzky Trophy is the championship trophy of the Western Conference of the Ontario Hockey League. It is named in honour of Wayne Gretzky. The corresponding trophy of the OHL Eastern Conference is the Bobby Orr Trophy. The trophy should not be confused with the similar-sounding Wayne Gretzky 99 Award, given annually to the Most Valuable Player in the OHL playoffs. It was first awarded in 1999.
List of winners
- 1998–99 - London Knights
- 1999–2000 - Plymouth Whalers
- 2000–01 - Plymouth Whalers
- 2001–02 - Erie Otters
- 2002–03 - Kitchener Rangers
- 2003–04 - Guelph Storm
- 2004–05 - London Knights
- 2005–06 - London Knights
- 2006–07 - Plymouth Whalers
- 2007–08 - Kitchener Rangers
- 2008–09 - Windsor Spitfires
- 2009-10- Windsor Spitfires
- 2010-11 - Owen Sound Attack
- 2011-12 - London Knights
- 2012-13 - London Knights
- 2013-14 - Guelph Storm
- 2014-15 - Erie Otters
- 2015-16 - London Knights