Zagreb Franjo Tuđman Airport (Croatian: Zračna luka Franjo Tuđman Zagreb) or Zagreb Airport (Croatian: Zračna luka Zagreb) (IATA: ZAG, ICAO: LDZA) is an international airport serving Zagreb, Croatia. It is the largest and busiest airport in Croatia. In 2019 it handled 3.45 million passengers and some 13,000 tons of cargo.

Named after Franjo Tuđman, the first President of Croatia, the airport is located some 10 km (6.2 mi) southeast of Zagreb Central Station in Velika Gorica. It is the hub of the Croatian flag carrier Croatia Airlines and a focus city for Trade Air. The main base of the Croatian Air Force is also located at the airport's premises. Moreover, the Croatian Air Traffic Control has its administration situated on the grounds of the airport.

The airport was awarded to the ZAIC consortium (Zagreb Airport International Company) in a 30-year concession under the terms of a contract signed by the Government of Croatia with the aforementioned. The contract includes the financing, designing and construction of a new passenger terminal which was opened in March 2017. For the purpose of managing the airport, ZAIC registered a company called MZLZ d.d. (Međunarodna zračna luka Zagreb d.d.) that is now the operator of the Airport.