2009-10 Williams Women's Swimming & Diving
| Name | Year | Event | Hometown/High School |
| Erin Altenburger | 11 | Free/Back | Mendham, NJ/Villa Walsh Academy |
| Gabrielle Campo | 10 | Breast | Wilton, CT/Hotchkiss School |
| Olivia Card-Childers | 11 | Sprint Free | Houston, TX/Lawrenceville |
| Lisa Chu | 10 | Breast/IM | Saratoga, CA/Saratoga |
| Lisa Cucolo | 10 | Breast/IM/Fly/Free | Glenville, NY/Niskayuna |
| Abbie Deal | 12 | Free | Charlottesville, VA/Albemarle High School |
| Maia Dickinson | 12 | Free | Anchorage, AK/East Anchorage High School |
| Bryn Dunbar | 13 | Sprint, Free | Cincinnati, OH/Wyoming High School |
| Carolyn Geller | 12 | Free/Fly | Great Neck, NY/Great Neck South |
| Lauren Goldstein-Kral | 12 | Free | Shaker Heights, OH/Hathaway Brown School |
| Kathryn Ha | 13 | Fly, Back, Free | Dobbs Ferry, NY/Hackley School |
| Jillian Hancock | 11 | Sprint/Fly/Mid Free | Danville, PA/Danville Area High |
| Joanna Hoffman | 10 | Mid Distance Free | Upper Arlington, OH/Upper Arlington |
| Abigail Islan | 10 | Breast/Free | Riverside, CT/Greenwich |
| Rebecca Maher | 13 | Freestyle | Hamden, CT/Hopkins School |
| Ryan McChesney | 11 | Free/Back | Atlanta, GA/Westminster School |
| Kerani McClelland | 10 | Diver | Phoenix, AZ/Phoenix Country Day |
| Christina Metcalf | 10 | Free/Breast | Cheshire, CT/Cheshire |
| Kathleen Morrison | 12 | Free/IM | Princeton, NJ/Princeton High School |
| Katharine O'Leary | 13 | IM, Fly | Montclair, NJ/Montclair High School |
| Bonnie Patchen | 12 | Fly/IM | Ithaca, NY/Lehman Alternative Community School |
| Ellen Ramsey | 11 | Fr/BK/IM | Belmont, MA/Belmont High |
| Kelsey Roggensack | 13 | Fly, Back | Phoenix, AZ/Arizona School of the Arts |
| Sophia Sequeira | 10 | Free/Back | Millstone Twp., NJ/Peddie |
| Taylor Stevens | 11 | Diving | Atlanta, GA/Westminster School |
| Anna Szymanski | 12 | Free/Back | Haines,AK/Haines High School |
| Logan Todhunter | 12 | Fly/IM | Ithaca, NY/Ithaca High School |
| Ashley Turner | 12 | Free/Breast | Bronx, NY/The Ursuline School |
| Jennifer Turner | 13 | Fly, Back | Bronx, NY/The Ursuline School |
| Liz Visconti | 13 | Breast, Free | Cheshire, CT/Chesire High School |
| Tracey Vitchers | 10 | Free | Milford, PA/Deleware Valley |
| Caroline Wilson | 13 | Free, IM, Breast, Fly | West Hartford, CT/Choate Rosemary Hall |
| Hannah Wilson | 12 | Diving | Glen Ridge, NY/ |
