Warsaw Chopin Airport (Polish: Lotnisko Chopina w Warszawie, Polish pronunciation: [lɔtˈɲiskɔ ʂɔˈpɛna]) (IATA: WAW, ICAO: EPWA) is an international airport in the Włochy district of Warsaw, Poland. It is the busiest airport in Poland and the 31st busiest airport in Europe with 18.5 million passengers in 2023, handling approximately 40% of the country's total air passenger traffic. The airport is a central hub for LOT Polish Airlines as well as a base for Enter Air and Wizz Air.

Warsaw Chopin Airport covers 834 hectares (2,060 acres) of land and handles approximately 300 scheduled flights daily, including a substantial number of charters. London, Frankfurt, Paris, and Amsterdam are the busiest international connections, while Kraków, Wrocław, and Gdańsk are the most popular domestic ones. Founded in 1934, the airport was previously known as Warsaw-Okęcie Airport (Port lotniczy Warszawa-Okęcie) and bore the name of its Okęcie neighborhood throughout its history. It was renamed in honour of Polish composer and former Warsaw resident Frédéric Chopin in 2001. Despite the official change, "Okęcie" ("Lotnisko Okęcie") remains in popular and industry use, including air traffic and aerodrome references.

An underground railway station connecting from the airport to Warsaw's suburban rail system was opened in June 2012 in time for the Euro 2012 football championships, and on 25 November 2013, the airport announced accommodating – for the first time in history – its 10 millionth passenger in a single year. A new and modern terminal was completed in 2015.