List of Famous people named Jan

Jan Bonny is a German film director and screenwriter.

Nancy Jan Davis is a former American astronaut. A veteran of three space flights, Davis logged over 673 hours in space. She is now retired from NASA.

Jan Frederik Gronovius was a Dutch botanist notable as a patron of Linnaeus.

Jan Elvedi is a Swiss professional footballer who plays as a centre-back for Jahn Regensburg.

Jan Zimmermann is a retired German goalkeeper. After retirement from his playing career in 2020, he is currently the goalkeeping coach for Bundesliga side Eintracht Frankfurt.

Jan Pieter Veth was a Dutch painter, poet, art critic and university lecturer. He is especially noted as a portrait painter. Amongst his sitters were Max Liebermann, Lambertus Zijl, Frank van der Goes, Antoon Derkinderen and other contemporaries including various fellow painters.

Jan Arnošt Smoler was a Sorbian philologist and writer. He played a vital role in revitalizing the Sorbian languages in the 19th century. He also supported a form of Pan-Slavism.

Count John IV of Nassau-Siegen, German: Johann IV. Graf von Nassau-Siegen, official titles: Graf zu Nassau, Vianden und Diez, Herr zu Breda, was since 1442 Count of Nassau-Siegen, of Vianden and of half Diez, and Lord of Breda and of de Lek. He descended from the Ottonian Line of the House of Nassau. He managed to expand his possessions in the Netherlands, where he was in the service of the Dukes of Burgundy.

Jan Karski was a Polish soldier, resistance-fighter, and diplomat during World War II. He is known for having acted as a courier in 1940–43 to the Polish Government-in-Exile and to Poland's Western Allies about the situation in German-occupied Poland. He was reporting about the state of Poland, in which there were many competing factions in the resistance, and also about Germany's destruction of the Warsaw Ghetto and its operation of extermination camps on Polish soil that were murdering Jews, Poles, and others.