Richard Manliffe Barrington (Fassaroe near Bray, 1849 – Dublin, 15 September 1915) was an Irish naturalist.
Barrington was a farmer and land valuer. He was educated at Trinity College where he gained an M.A.. He wrote reports on the flora of Lough Ree, Lough Erne, Ben Bulben, Tory Island and the Blaskets all published by the Royal Irish Academy but most of his scientific papers are on birds. His best known work is The migration of birds, as observed at Irish lighthouses and lightships including the original reports from 1888–97, now published for the first time, and an analysis of these and of the previously put together with an appendix giving the measurements of about 1600 wings London : R.H. Porter [1] Only 350 copies of this 667 page work were printed.
Barrington was one of the leaders of the Royal Irish Academy Rockall expedition of 1896 with Robert Lloyd Praeger and John A. Harvie Brown of Dunipace (1844–1916), a Scottish gentleman naturalist.
His collection of bird specimens (wings and legs of birds collected by light-keepers) stored in paper envelopes are conserved in the National Museum of Ireland and the Ulster Museum