Boeung Kak (Khmer: បឹងកក់) is an area in Khan Daun Penh and Khan Toul Kork centrally located in the capital city of Cambodia, Phnom Penh. Until around 2010, it was covered by the largest urban lake in Phnom Penh. Residential areas, businesses, restaurants, hotels, embassies and other local businesses surrounded the area of the lake. Phnom Penh's main railway station formerly sat on its south coast. The lake itself was 90 hectares in area.