Hezarfen Airfield (Turkish: Hezarfen Havaalanı) (ICAO: LTBW) is a privately owned airport for general aviation in the Çatalca district of Istanbul, Turkey. It is one of a total of five airports in Istanbul along with Istanbul Airport (LTFM), Istanbul Sabiha Gökçen International Airport (LTFJ), Atatürk Airport (LTBA), and Samandıra Army Air Base (LTBX). Hezarfen Airfield is named after Hezârfen Ahmet Çelebi, a legendary Ottoman aviator, who flew across the Bosporus in the 17th century, as told by a contemporary traveler Evliya Çelebi.

The 500 acres (200 ha) airfield is on a peninsula surrounded by Lake Büyükçekmece to the south and by the motorway O-3 / E80 to the north. It is 50 km (31 mi) west of Istanbul. Since 1992, it has served as the first internationally acknowledged private airport in Turkey.

Its asphalt runway is 681 m (2,234 ft) long and 28 m (92 ft) wide. There are four taxiways parallel to the runway, a 2,400 m2 (26,000 sq ft) concrete ramp, and another 3,000 m2 (32,000 sq ft) paved one. It also has a motocross circuit, a 120 m (390 ft) long model airplane field, and a heliport.