2003 European Seniors Tour
The 2003 European Seniors Tour was the 12th season of the European Seniors Tour, the professional golf tour for men aged 50 and above operated by the PGA European Tour.
Tournament results
The numbers in brackets after the winners' names show the number of career wins they had on the European Seniors Tour up to and including that event. This is only shown for players who are members of the tour.| Date | Tournament | Host country | Winner | Notes |
| 23 Mar | Digicel Jamaica Classic | Jamaica |  Ray Carrasco | |
| 29 Mar | Royal Westmoreland Barbados Open | Barbados |  Terry Gale | |
| 5 Apr | Tobago Plantations Seniors Classic | Trinidad and Tobago | Terry Gale | |
| 18 May | AIB Irish Seniors Open | Republic of Ireland | Noel Ratcliffe | |
| 25 May | Wallonia Open | Belgium | Hank Woodrome | |
| 8 Jun | U.S. Senior PGA Championship | United States | John Jacobs | Champions Tour major. Unofficial money on the EST. |
| 15 Jun | Irvine Whitlock Jersey Seniors Classic | Jersey |  Malcolm Gregson | |
| 22 Jun | De Vere Northumberland Seniors Classic | England | Jerry Bruner | |
| 29 Jun | U.S. Senior Open | United States | Bruce Lietzke | Champions Tour major. Unofficial money on the EST. |
| 6 Jul | Ryder Cup Wales Seniors Open | Wales |  Bill Longmuir | |
| 13 Jul | Mobile Cup | England | Carl Mason | |
| 27 Jul | Senior British Open | Scotland | Tom Watson | Senior major |
| 3 Aug | De Vere PGA Seniors Championship | England | Bill Longmuir | |
| 10 Aug | Bad Ragaz PGA Seniors Open | Switzerland |  Horacio Carbonetti | |
| 17 Aug | Travis Perkins Senior Masters | England | John Chillas | |
| 24 Aug | Nigel Mansell Classic | England | Mike Miller | New tournament |
| 31 Aug | Charles Church Scottish Seniors Open | Scotland | Terry Gale | |
| 7 Sep | Bovis Lend Lease European Senior Masters | England |  Paul Leonard | |
| 20 Sep | The Daily Telegraph Turismo Andaluz Seniors Match Play Championship | Spain | Carl Mason | |
| 28 Sep | Merseyside English Seniors Open | England | Carl Mason | New tournament |
| 4 Oct | Tunisian Seniors Open | Tunisia | David Good | |
| 12 Oct | Estoril Seniors Tour Championship | Portugal | Carl Mason | |
| 23 Nov | UBS Cup | United States | Tie | Team event |
For the tour schedule on the European Senior Tour's website, including links to full results, click .