Henry Augustus Rowland | |
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| Born | November 27, 1848 Honesdale, Pennsylvania, U.S. |
| Died | April 16, 1901 (aged 52) |
| Alma mater | Rensselaer Polytechnic Institute |
| Known for | Diffraction grating Rowland circle Rowland ring |
| Awards | Rumford Prize (1883) Henry Draper Medal (1890) Matteucci Medal (1895) |
| Scientific career | |
| Fields | Physicist |
| Institutions | University of Wooster Rensselaer Polytechnic Institute Johns Hopkins University |
| Academic advisors | Hermann von Helmholtz |
| Doctoral students | Joseph Sweetman Ames Louis Bell Edwin Hall William Jackson Humphreys Charles Elwood Mendenhall Harry Fielding Reid Albert Francis Zahm |
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Henry Augustus Rowland (November 27, 1848 – April 16, 1901) was an American physicist and Johns Hopkins educator. Between 1899 and 1901 he served as the first president of the American Physical Society. He is remembered for the high quality of the diffraction gratings he made and for the work he did with them on the solar spectrum.