Jan Masaryk
Czechoslovak diplomat and politician (1886–1948)
- Born: 1886-09-14 (Vinohrady Prague)
- Died: 1948-03-10 (Hradčany Prague)
- Country of citizenship: Austria-Hungary; Czechoslovakia
- Occupation: Clerical Officer; diplomat; opinion journalist; politician; translator
- Military rank: captain
- Military branch: Czechoslovak army in exile (since: 1939-10-02)
- Position held: Minister of Foreign Affairs (Czechoslovakia) (period: 1940-07-21 through 1948-03-10; replaced by: Vladimír Clementis; replaces: František Chvalkovský); Minister of National Defence of Czechoslovakia (period: 1944-01-01 through 1945-01-01; replaced by: Ludvík Svoboda; replaces: Sergej Ingr); chargé d'affaires
- Educated at: Bates College
- VIAF ID: https://viaf.org/viaf/4989911
- ISNI: https://isni.org/isni/000000010864727X
- WorldCat Identities ID: https://worldcat.org/identities/lccn-n81118907
- Library of Congress authority ID: https://id.loc.gov/authorities/names/n81118907