Charles Henry Emeleus (4 September 1930 – 11 November 2017) was a British igneous petrologist.

He was the son of physicist Karl George Emeléus, a lecturer (and later professor) at Queen's University Belfast, and nephew of chemist Harry Julius Emeléus.

[3] Emeleus studied geology at Queen's University Belfast (BSc 1952.MSc 1953) and then went to work with Bill Wager at Oxford, where he was a student at Wadham College.

During this period, he was introduced to the layered igneous rocks of Greenland and Rùm, where he initially worked with George Malcolm Brown.

In addition to his teaching and research into igneous rocks, Emeleus was a highly capable petrologist.