| Honorific Prefix: | Professor Sir |
| Henry Alexander Miers | |
| Honorific Suffix: | Kt FRS |
| Birth Date: | 25 May 1858 |
| Birth Place: | Rio de Janeiro, Brazil |
| Death Date: | 10 December 1942 |
| Nationality: | British |
Sir Henry Alexander Miers, FRS[1] (25 May 1858 - 10 December 1942) was a British mineralogist and crystallographer.
Born in Rio de Janeiro, Brazil, he was educated at Eton College and Trinity College, Oxford. He was elected a Fellow of the Royal Society in 1896.
He was Professor of Crystallography at the Victoria University of Manchester 1915–1926 and Vice-Chancellor of the University during the same years.[2]