| Sport: | Water polo |
| Birth Date: | 13 October 1978 |
| Birth Place: | Portland, Oregon, United States |
Ellen Marie Estes (born October 13, 1978) is an American water polo player, who won the silver medal at the 2000 Summer Olympics. She also won a bronze medal at the 2004 Summer Olympics. Estes scored three goals during the bronze medal game against Australia.
Estes played for Stanford University. She was a senior on the 2002 NCAA National Championship Team; was a two-time All-American; and broke a Stanford scoring record with 93 goals in her sophomore year. She graduated with an Engineering degree at Stanford, and interned for studied roller-coaster design as an intern with Disney.
In 2003, Estes was named the USA Water Polo Female Athlete of the Year.
From 2007–2009, Estes served as a volunteer assistant coach for the Harvard University Men's and Women's Water Polo Teams, while finishing her MBA at Harvard Business School.
In 2012, she was inducted into the USA Water Polo Hall of Fame.[1] [2]