List of Famous people born in April

Siobhan Leachman is a New Zealand citizen scientist, open knowledge advocate, and Wikipedian whose work focusses on natural history.

Karl-Ludwig Kratz is a German nuclear chemist and astrophysicist. He is professor for nuclear chemistry at the Johannes Gutenberg University of Mainz and adjunct professor of physics at the University of Notre Dame in South Bend, Indiana.

Aurel Friedrich Wintner was a mathematician noted for his research in mathematical analysis, number theory, differential equations and probability theory. He was one of the founders of probabilistic number theory. He received his Ph.D. from the University of Leipzig in 1928 under the guidance of Leon Lichtenstein. He taught at Johns Hopkins University.

Kevin Hulsmans is a Belgian former professional road bicycle racer, who rode professionally between 2000 and 2015.