Horace Stanley McCoy was an American writer whose mostly hardboiled stories took place during the Great Depression. His best-known novel is They Shoot Horses, Don't They? (1935), which was made into a movie of the same name in 1969, fourteen years after McCoy's death.

Horace Elisha Scudder (October 16, 1838 – January 11, 1902) was an American man of letters and editor.

Horace Secrist was an American statistician and economist, a professor and the director of the Bureau of Economic Research at Northwestern University.

Horace Logo Traubel (1858–1919) was an American essayist, poet, magazine publisher, writer, and Georgist. Traubel was closely associated with the Arts and Crafts movement in the United States and published a monthly literary magazine called The Conservator from 1890 until the time of his death. Although a poet of note in his own right, Traubel is best remembered as the literary executor and biographer of his friend, poet Walt Whitman, with whom he transcribed and compiled nine volumes of daily conversations, entitled With Walt Whitman in Camden.

Horace Twiss KC was an English writer and politician.

Horatio Walpole, 4th Earl of Orford, better known as Horace Walpole, was an English writer, art historian, man of letters, antiquarian, and Whig politician.

Horace William Wheelwright was an English hunter, naturalist and writer who spent many years of his life in Australia and Sweden.

Horacio Castellanos Moya is a Honduran novelist, short story writer, and journalist.

Horacio Silvestre Quiroga Forteza was a Uruguayan playwright, poet, and short story writer.

Horapollo is the supposed author of a treatise, titled Hieroglyphica, on Egyptian hieroglyphs, extant in a Greek translation by one Philippus, dating to about the 5th century.