Field List for 45th U.S. Senior Open
| Steven Alker | New Zealand |
| Steve Allan | Australia |
| Robert Allenby | Australia |
| Stephen Ames | Canada |
| Billy Andrade | United States of America |
| Thomas Ansbro | United States of America |
| Stuart Appleby | Australia |
| Tomas Arlia | United States of America |
| Arjun Atwal | India |
| Woody Austin | United States of America |
| Eric Axley | United States of America |
| Peter Baker | England |
| John Balfanz | United States of America |
| Craig Barlow | United States of America |
| Doug Barron | United States of America |
| Shane Bertsch | United States of America |
| Thomas Bjorn | Denmark |
| David Branshaw | United States of America |
| Paul Broadhurst | England |
| Olin Browne | United States of America |
| Brad Bryant | United States of America |
| Dave Bunker | Canada |
| John Bushka | United States of America |
| Angel Cabrera | Argentina |
| Michael Campbell | New Zealand |
| Chad Campbell | United States of America |
| Jason Caron | United States of America |
| Jim Carter | United States of America |
| Alex Cejka | Germany |
| Greg Chalmers | Australia |
| K.J. Choi | Republic of Korea |
| Stewart Cink | United States of America |
| Doug Clapp | United States of America |
| Darren Clarke | Northern Ireland |
| Robert Coles | England |
| Burke Cromer | United States of America |
| Rod Curl Jr | United States of America |
| Adilson Da Silva | Brazil |
| Glen Day | United States of America |
| Clark Dennis | United States of America |
| Chris Devlin | United States of America |
| Chris Dimarco | United States of America |
| Ken Duke | United States of America |
| Scott Dunlap | United States of America |
| Joe Durant | United States of America |
| Ernie Els | South Africa |
| Boomer Erick | United States of America |
| Bob Estes | United States of America |
| Mike Fergin | United States of America |
| Darin Fisher | United States of America |
| Steve Flesch | United States of America |
| Harrison Frazar | United States of America |
| Hiroyuki Fujita | Japan |
| Fred Funk | United States of America |
| Stephen Gallacher | Scotland |
| Brian Gay | United States of America |
| Ryan Gioffre | United States of America |
| Matt Gogel | United States of America |
| Thomas Gögele | Germany |
| Mathew Goggin | Australia |
| Ricardo Gonzalez | Argentina |
| Retief Goosen | South Africa |
| Jason Gore | United States of America |
| Paul Goydos | United States of America |
| Richard Green | Australia |
| Tom Greller | United States of America |
| Simon Griffiths | England |
| Kelly Grunewald | United States of America |
| Joakim Haeggman | Sweden |
| Padraig Harrington | Ireland |
| Ryan Helminen | United States of America |
| Scott Hend | Australia |
| JJ Henry | United States of America |
| Mark Hensby | Australia |
| Keith Horne | South Africa |
| Scott Hunter | United States of America |
| Greig Hutcheon | Scotland |
| Fredrik Jacobson | Sweden |
| Thongchai Jaidee | Thailand |
| Lee Janzen | United States of America |
| Joe Jaspers | United States of America |
| Miguel Angel Jimenez | Spain |
| Brandt Jobe | United States of America |
| Marcus Jones | United States of America |
| Brendan Jones | Australia |
| Takashi Kanemoto | Japan |
| Robert Karlsson | Sweden |
| Bradley Kay | United States of America |
| Jerry Kelly | United States of America |
| James Kingston | South Africa |
| Ed Kirby | United States of America |
| Soren Kjeldsen | Denmark |
| Mark Knowles | United States of America |
| Cliff Kresge | United States of America |
| Bernhard Langer | Germany |
| Richard Lee | New Zealand |
| Tom Lehman | United States of America |
| Justin Leonard | United States of America |
| Thomas Levet | France |
| Davis Love III | United States of America |
| Jeff Maggert | United States of America |
| Andrew Marshall | England |
| Len Mattiace | United States of America |
| Scott Mccarron | United States of America |
| Rocco Mediate | United States of America |
| Eric Meichtry | United States of America |
| Terrence Miskell | United States of America |
| Katsumasa Miyamoto | Japan |
| Colin Montgomerie | Scotland |
| Timothy Oneal | United States of America |
| Darrin Overson | United States of America |
| Greg Owen | England |
| Rod Pampling | Australia |
| Scott Parel | United States of America |
| Perry Parker | United States of America |
| Cameron Percy | Australia |
| Thomas Pernice Jr. | United States of America |
| Rod Perry | United States of America |
| Tim Petrovic | United States of America |
| Van Phillips | England |
| Tracy Phillips | United States of America |
| Dicky Pride | United States of America |
| Ted Purdy | United States of America |
| Brett Quigley | United States of America |
| Christian Raynor | United States of America |
| Taggart Ridings | United States of America |
| Eric Rolland | United States of America |
| Roger Rowland | United States of America |
| Peter Samborsky II | United States of America |
| Andrew Sapp | United States of America |
| Gene Sauers | United States of America |
| Matt Schalk | United States of America |
| Steve Schneiter | United States of America |
| Rob Shields | United States of America |
| Kevin Shields | United States of America |
| Vijay Singh | Fiji |
| Jeff Sluman | United States of America |
| Stuart Smith | United States of America |
| Paul Stankowski | United States of America |
| Steve Stricker | United States of America |
| Mark Strickland | United States of America |
| Daniel Sullivan | United States of America |
| Kevin Sutherland | United States of America |
| Channing Tam | United States of America |
| Ken Tanigawa | United States of America |
| David Toms | United States of America |
| Kirk Triplett | United States of America |
| Bo Van Pelt | United States of America |
| Scott Verplank | United States of America |
| Duffy Waldorf | United States of America |
| Boo Weekley | United States of America |
| Mike Weir | Canada |
| Todd White | United States of America |
| Willie Wood | United States of America |
| Y.E. Yang | Republic of Korea |
