Jan Śniadecki (1756–1830), Polish mathematician, philosopher, and astronomer
Jan van Eyck | Jan Matejko Academy of Fine Arts | Jan Hammer | Jan Peerce | Jan Hus | Jan Mayen | Jan Guillou | Jan Smuts | Jan Fabre | Jan Morris | Jan Matejko | Jan Garbarek | Ignacy Jan Paderewski | Jan van Riebeeck | Jan Troell | Jan Tinbergen | Jan Neruda | Jan-Michael Vincent | Jan Kochanowski | Jan Brewer | Jan Bechtum | Jan Zamoyski | Jan Ullrich | Jan Peter Balkenende | Jan Egeland | Robert Jan Stips | Mian Shakirullah Jan | Jędrzej Śniadecki | Jan Weenix | Jan Timman |
Many of them were prominent Polish figures, including luminaries such as Ignacy Krasicki, Franciszek Bohomolec, Adam Naruszewicz, Ignacy Potocki, Hugo Kołłątaj, Jan and Jędrzej Śniadecki, Stanisław Konarski, Tomasz Adam Ostrowski and Chancellor Andrzej Zamoyski.