Ocean Park Hong Kong, commonly known simply as Ocean Park, is an animal theme park in Hong Kong. Covering an area of 91.5 hectares (226 acres) in Wong Chuk Hang, it is the largest theme park by area in Hong Kong, and is also the city's second oldest theme park, after the now-defunct Lai Chi Kok Amusement Park.

Opened on 10 January 1977, Ocean Park became popular, but 28 years later, it was unprofitable and widely expected to close due to the new Hong Kong Disneyland. However, the park responded with a HK$5.5 billion development plan that saw it expand to over 80 attractions and rides, and steadily grow visitor numbers to 7.6 million in 2014, making it the world's 13th most visited theme park, and one of the largest theme parks in Asia.