Johan Fabricius (1899–1981) was a Dutch writer, journalist, and adventurer.
Johan Fabricius or Johann Fabricius may also refer to:
Johan Christian Fabricius (1745–1808), Danish zoologist Johann Albert Fabricius (1668–1736), German classical scholar and bibliographer Johann Phillip Fabricius (1711–1791), German missionary and scholar
See also Johannes Fabricius (1587–1616), German astronomer