2003 WGC American Express Championship

The 2003 WGC-American Express Championship was a golf tournament that was contested from October 2–5, 2003 over the Capital City Club's Crabapple Course in Woodstock, Georgia. It was the fourth WGC-American Express Championship tournament and the third of four World Golf Championships events held in 2003.

World number 1 Tiger Woods won the tournament to capture his third WGC-American Express Championship and his seventh World Golf Championships title.