All Astronauts and Cosmonauts

Every person who has flown in space, government-sponsored or private, grouped by the nation or program under which they flew: the established spacefaring nations, private spaceflight participants who flew outside any national program, and international partners and guest astronauts who flew as guests of another nation's program. This category excludes the missions an astronaut flew, each a separate entity linked by relationship, and it is a genuinely small, near-completable population, a few hundred people across the whole of human history.