Henry Jones Ford was a political scientist, journalist, university professor, and government official. He served as president of the American Political Science Association. He was appointed by Woodrow Wilson as the Banking and Insurance Commissioner of New Jersey in 1912.

Thomas Henry Kendall, was an Australian author and bush poet, who was particularly known for his poems and tales set in a natural environment. He appears never to have used his first name — his three volumes of verse were all published under the name of "Henry Kendall".

Henry Kingsley was an English novelist, brother of the better-known Charles Kingsley. He was an early exponent of muscular Christianity in an 1859 work, The Recollections of Geoffry Hamlyn.

Henry Kirke White was an English poet and hymn-writer. He died at the young age of 21.

Henry Kitchell Webster was an American who was one of the most popular serial writers in the country during the early twentieth century. He wrote novels and short stories on themes ranging from mystery to family drama to science fiction, and pioneered techniques for making books best sellers.

Henry Kuttner was an American author of science fiction, fantasy and horror.

Henry Archibald Hertzberg Lawson was an Australian writer and bush poet. Along with his contemporary Banjo Paterson, Lawson is among the best-known Australian poets and fiction writers of the colonial period and is often called Australia's "greatest short story writer".

Henry Lindlahr was the author of one of the cornerstone texts of American naturopathic medicine, Nature Cure, which includes topics about disease suppression versus elimination, hydrotherapy, and the importance of fresh air and sun bathing.

Henry Longueville Mansel was an English philosopher and ecclesiastic.

Henry Mackenzie FRSE was a Scottish lawyer, novelist and writer sometimes seen as the Addison of the North. While remembered mostly as an author, his main income came from legal roles, which led in 1804–1831 to a lucrative post as Comptroller of Taxes for Scotland, whose possession allowing him to follow his interest in writing.