George William Hill | |
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 George William Hill | |
| Born | March 3, 1838 New York City, U.S. |
| Died | April 16, 1914 (aged 76) West Nyack, New York, U.S. |
| Nationality | American |
| Alma mater | Rutgers University |
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| Scientific career | |
| Fields | Astronomy, mathematics |
| Institutions | Columbia University, United States Naval Observatory |
| Academic advisors | Theodore Strong |
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George William Hill (March 3, 1838 – April 16, 1914) was an American astronomer and mathematician. Working independently and largely in isolation from the wider scientific community, he made major contributions to celestial mechanics and to the theory of ordinary differential equations. The importance of his work was explicitly acknowledged by Henri Poincaré in 1905. In 1909 Hill was awarded the Royal Society's Copley Medal, "on the ground of his researches in mathematical astronomy". Hill is remembered for the Hill differential equation, along with the Hill sphere.