Robert Henry Elliot, (1837–1914), was an early British coffee planter in Mysore, India. He was the author of books about plantation life in Mysore and about farming in Scotland. He came from Kelso, Roxburghshire, Scotland.

Robert Henry Thurston was an American engineer, and the first Professor of Mechanical Engineering at Stevens Institute of Technology.

Robert Welch Herrick was a novelist who was part of a new generation of American realists. His novels deal with the turbulence of industrialized society and the turmoil it can create in sensitive, isolated people. He was also briefly acting-Governor of the United States Virgin Islands in 1935.

Robert Herrick was a 17th-century English lyric poet and Anglican cleric. He is best known for Hesperides, a book of poems. This includes the carpe diem poem "To the Virgins, to Make Much of Time", with the first line "Gather ye rosebuds while ye may".

Robert Hichens was an English journalist, novelist, music lyricist, short story writer, music critic and collaborated on successful plays. He is best remembered as a satirist of the "Naughty Nineties".

Robert Silliman Hillyer was an American poet and professor of English literature. He won a Pulitzer Prize for poetry in 1934.

Robert Hooke FRS was an English polymath active as a scientist, natural philosopher and architect, who is credited to be one of the first two scientists to discover microorganisms in 1665 using a compound microscope that he built himself, the other scientist being Antonie van Leeuwenhoek in 1674. An impoverished scientific inquirer in young adulthood, he found wealth and esteem by performing over half of the architectural surveys after London's great fire of 1666. Hooke was also a member of the Royal Society and since 1662 was its curator of experiments. Hooke was also Professor of Geometry at Gresham College.

Robert Hugh Benson AFSC KC*SG KGCHS was an English Catholic priest and writer. First an Anglican priest, he was received into the Catholic Church in 1903 and ordained therein the next year. He was also a prolific writer of fiction, writing the notable dystopian novel Lord of the World, as well as Come Rack! Come Rope!.

Robert Huish was a prolific English author of history books, novels, and miscellaneous other works.

Robert James Sawyer is a Canadian and American science fiction writer. He has had 24 novels published and his short fiction has appeared in Analog Science Fiction and Fact, Amazing Stories, On Spec, Nature, and numerous anthologies. He has won many writing awards, including the best-novel Nebula Award (1995), the best-novel Hugo Award (2003), the John W. Campbell Memorial Award (2006), the Robert A. Heinlein Award (2017), and more Aurora Awards than anyone else in history.