John Fletcher was an English playwright. Following William Shakespeare as house playwright for the King's Men, he was among the most prolific and influential dramatists of his day; during his lifetime and in the Stuart Restoration, his fame rivalled Shakespeare's. Fletcher collaborated in writing plays with Francis Beaumont and Shakespeare. Though his reputation has subsequently declined, he remains an important transitional figure between the Elizabethan popular tradition and the popular drama of the Restoration.

Giovanni Florio (1552–1625), known as John Florio, was an English linguist, poet, writer, translator, lexicographer, and royal language tutor at the Court of James I. He is recognised as the most important Renaissance humanist in England. Florio contributed 1,149 words to the English language, placing third after Chaucer and Shakespeare, in the linguistic analysis conducted by Stanford professor John Willinsky.

Sir John Foster Fraser was a Scottish travel author. In July 1896, he and two friends, Samuel Edward Lunn and Francis Herbert Lowe, took a bicycle trip around the world riding Rover safety bicycles. They covered 19,237 miles in two years and two months, travelling through 17 countries and across three continents. He documented the trip in the book Round the World on a Wheel.

John Foxe, an English clergyman, theologian, and historian, notable for his martyrology Actes and Monuments, telling of Christian martyrs throughout Western history, but particularly the sufferings of English Protestants and proto-Protestants from the 14th century and in the reign of Mary I. The book was widely owned and read by English Puritans and helped to mould British opinion on the Catholic Church for several centuries.

Sir John Francis Davis, 1st Baronet was a British diplomat and sinologist who served as second Governor of Hong Kong from 1844 to 1848. Davis was the first President of Royal Asiatic Society Hong Kong.

John Frederick Freeman was an English poet and essayist, who gave up a successful career in insurance to write full-time.

John Gibbons Adams was the US Army's counsel in the Army-McCarthy Hearings. He was an Army veteran of World War II, and he worked in Washington, DC for the Defense Department before he became the US Army general counsel in 1953. From 1953 to 1955 he was the chief legal adviser to Army Secretary Robert T. Stevens.

John Godfrey Morris was an American picture editor, author and journalist, and an important figure in the history of photojournalism.

Alonzo John Gallishaw was a Canadian author and teacher.

John Galsworthy was an English novelist and playwright. He is best known for his trilogy of novels collectively called The Forsyte Saga, and two later trilogies, A Modern Comedy and End of the Chapter. He won the Nobel Prize in Literature in 1932.