2005 WGC-Accenture Match Play Championship

The 2005 WGC-Accenture Match Play Championship was a golf tournament that was played from February 24–27, 2005 at La Costa Resort and Spa in Carlsbad, California. It was the seventh WGC-Accenture Match Play Championship and the first of four World Golf Championships events held in 2005.

The Championship was due to start on Wednesday February 23 but was delayed by a day because of wet conditions. The first round was played on February 24, while both the second and third rounds were played on February 25.

David Toms won his first World Golf Championships event by defeating Chris DiMarco 6 and 5 in the 36 hole final.

Brackets
The Championship was a single elimination match play event. The field consisted of the top 64 players available from the Official World Golf Rankings, seeded according to the rankings. Ernie Els, ranked number 3, chose not to play the event, so number 65 Shingo Katayama was added to the field.