Henry Edward O'NeillFRGS, FRAS, RN, (1848–1925)[1] was a Royal Navy officer and British explorer of central Africa.[2] He served as HBMconsul, Mozambique.[3] O'Neill was a Fellow of the Royal Astronomical Society and Royal Geographical Society, as well as an Honorary Corresponding Member of the Scottish Geographical Society.[4] He was the 1882 recipient of the Royal Geographical Society's Back Award and the 1885 recipient of their Patron's Medal.[5]
Some of his published works include, Journey from Mozambique to Lake Shirwa, and discovery of Lake Amaramba, and
Astronomical observations between Mozambique coast and lake Nyassa.[6] His narrative of first encounter in 1882 with residents of the plateau south of Mozambique's Ruvuma Region was the earliest written record on the area.[7]