Ursin

Ursin a surname. Notable people with the surname include:


 * Georg Frederik Ursin (1797–1849), Danish mathematician and astronomer
 * Holger Ursin (1934–2016), Norwegian physician and psychologist
 * Rupert Ursin (born 1973), Austrian quantum physicist
 * Nils Robert af Ursin (1854–1936), Finnish secondary school teacher and politician