Modlin

Modlin may refer to:


 * Modlin, Nowy Dwór Mazowiecki County, a village until 1961, now a district of Nowy Dwór Mazowiecki, Poland
 * Modlin Army, a Polish army during the invasion of Poland in 1939
 * Battle of Modlin, a battle during the Polish September Campaign
 * Modlin Fortress, a fortress in Nowy Dwór Mazowiecki, Poland, constructed in the 19th century
 * Modlin Airport, an airport serving the Warsaw area
 * ORP Wilia, from 1940 a merchant ship SS Modlin, a ship of the Polish Merchant Navy