Mean Chey District (Khmer: ខណ្ឌមានជ័យ, "Victorious") is located in the south-eastern part of Phnom Penh, Cambodia. The district has an area of 43.79 km². According to the 1998 census of Cambodia, it had a population of 157,112.
Mean Chey is subdivided into 4 Sangkats (communes) and 16 Kroms (villages).