Modlin may refer to:
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Modlin, Nowy Dwór Mazowiecki County, a village until 1961, now a district of Nowy Dwór Mazowiecki, Poland
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Modlin Army, a Polish army during the invasion of Poland in 1939
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Battle of Modlin
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...
, a battle during the Polish September Campaign
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Modlin Fortress
Modlin Fortress () is one of the largest 19th-century fortresses in Poland. It is located in the town of Nowy Dwór Mazowiecki in district Modlin (village), Modlin on the Narew river, approximately 50 kilometers north of Warsaw. It was original ...
, a fortress in Nowy Dwór Mazowiecki, Poland, constructed in the 19th century
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Modlin Airport, an airport serving the Warsaw area
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ORP ''Wilia'', from 1940 a merchant ship SS ''Modlin'', a ship of the Polish Merchant Navy
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