Phnom Penh is the capital and most populous city of Cambodia. It has served as the nation's national capital since 1865 and functions as the country's primate city, serving as its primary political, economic, industrial, and cultural center.
The city is situated at the confluence of the Tonlé Sap and Mekong rivers and marks the beginning of the Bassac River. Its name originates from Wat Phnom, a Buddhist temple, and Lady Penh, who was the city's founder. Additionally, the city serves as the seat of Cambodia's monarchy, which is based at the Royal Palace.