Monostori is a surname occurring in Hungary. Notable people with the surname include:
Attila Monostori (1971–2025), Hungarian water polo player Ferenc Monostori (1909–2008), Hungarian ice hockey player Tivadar Monostori (1936–2014), Hungarian football player and manager
See also Fort Monostor (Hungarian: Monostori Erőd), a fort close to the city of Komárom, Hungary
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