During busy Presidents Cup week in Montreal in 2007, met and presented Canadian Prime Minister Stephen Harper with a personalized TaylorMade golf bag.

Dropped the ceremonial puck before the Toronto Maple Leafs playoff game against the Philadelphia Flyers on April 14, 2003. Prior to 2003 Presidents Cup, gave teammates Team Canada hockey jerseys complete with names stitched on the back.

At age 13, sought advice from Jack Nicklaus. In a letter, asked whether he should switch to playing right-handed. Response was to stick to natural swing.

Three-time recipient (2000-01 and 2003) of Lionel Conacher Award, given to Canada's Male Athlete of the Year. First golfer to be so honored since 1932.

Received the Order of Canada in 2009, Canada's highest civilian honor, and received the Order of Ontario in 2004. 2009 Canadian Golf Hall of Fame inductee.

Mike Weir Foundation, established in 2004, is dedicated to advancing the physical, emotional and educational needs of children. Runs annual event, the Mike Weir Miracle Golf Drive for Kids, to raise money for the Children's Miracle Network. Established Mike Weir Wine in 2005, benefiting the Weir Foundation.