Which PGA Tour event is Canada's national open championship?

The PGA Tour event that serves as Canada’s national open championship is the Canadian Open.

First played in 1904, the tournament is organized by Golf Canada and the PGA Tour. Its modern sponsored name is the RBC Canadian Open, but “Canadian Open” remains the canonical answer to the question. It is one of the oldest continuously held tournaments on the PGA Tour, behind only The Open Championship and the U.S. Open.

The event has used several names over time: Canadian Open through 1993, Bell Canadian Open from 1994 to 2005, and RBC Canadian Open from 2008 onward. That sponsorship history can cause confusion, but the underlying tournament is the same national open.

The Canadian Open has attracted many major champions, including Walter Hagen, Sam Snead, Arnold Palmer, Lee Trevino, Tiger Woods and Rory McIlroy. Jack Nicklaus famously never won it, despite finishing runner-up seven times.