Happy Valley Beijing, Amusement park in Nanmofang, China.

Happy Valley Beijing is a theme park in Chaoyang District, eastern Beijing, covering 560,000 square metres. It is divided into seven themed areas: Fjord Forest, Aegean Port, Lost Maya, Shangri-La, Ant Kingdom, Atlantis and Happy Time Zone. Atlantis centres on a towering Crystal City that serves as the park's main portal, and the park holds more than 40 rides, ten of them extreme, plus a seven-screen IMAX theatre and a shopping complex.

Happy Valley Beijing opened on 29 July 2006, built by the Shenzhen Overseas Chinese Town Group as the second park in the Happy Valley chain. Its first four years saw six themed areas in operation. A second phase, the Happy Time Zone, opened on 27 June 2010; a third phase with a marine theme followed on 31 May 2014, costing 500 million yuan. The Dessert Kingdom phase opened on 1 May 2018, and the Shangri-La area on 28 June 2019.

Since October 2007 the park has held an International Magic Festival each National Day holiday, with magicians from around the world and visitors taking part in close-up magic interaction. The Lost Maya district has staged the stunt sitcom "The Three Swallows", set in old Beijing. Staff uniforms are styled to match the culture of the zone where they work.

The park sits southeast of Sifang Bridge on Beijing's East Fourth Ring Road, about 10.2 km from Tiananmen, and is served by Happy Valley Station on Metro Line 7. Buses 31, 41, 561 and 8 stop nearby. Drivers can use the paid ecological car park; the Jingjintang Expressway entrance is a five-minute drive away.

The park's first four years saw six themed areas open, among them Atlantis, built around the search for the legendary lost city, and Lost Maya, set against the vanished Maya civilisation. The two sit side by side, so a Greek-themed Aegean port, a Tibetan Shangri-La and a cartoon Ant Kingdom all stand within one boundary.