Johan Egerkrans is a Swedish writer and illustrator. His first book as author and illustrator, Nordiska Väsen, was published in 2013, and describes creatures from Nordic folklore. He has subsequently released other books, including Nordiska gudar, De odöda, and Drakar.

Johan Johannes Fabricius, who published in English as Johan Wigmore Fabricius, was a Dutch writer, journalist and adventurer.

Johan Falkberget, born Johan Petter Lillebakken, was a Norwegian author. He was nominated for the Nobel Prize in Literature.

Johan Vincent Galtung is a Norwegian sociologist who is the principal founder of the discipline of peace and conflict studies. He was the main founder of the Peace Research Institute Oslo (PRIO) in 1959 and served as its first director until 1970. He also established the Journal of Peace Research in 1964.

Johan Goudsblom (1932–2020) was a Dutch sociologist.

Johan Harstad is a Norwegian novelist, short story writer, playwright and graphic designer. He lives in Oslo.

Johan Heliot is the pseudonym used by Stéphane Boillot-Cousin, a French science fiction writer. He is known for imaginative stories and has also written juvenile literature. One of his stories was translated into English for The Mammoth Book of New Jules Verne Adventures.

Johan Henrik Kellgren was a Swedish poet and critic.

Johan Herman Wessel was an 18th-century Danish-Norwegian poet, satirist and playwright. His written work was characterized by the use of parody and satiric wit.

Johan Huizinga was a Dutch historian and one of the founders of modern cultural history.