Cape Otway National Park is a national park in Victoria (Australia), 162 km southwest of Melbourne. The 103 km² park was declared in 2004 when Otway National Park, Angahook-Lorne State Park, Carlisle State Park, Melba Gully State Park, areas of the Otway State forest and a number of Crown Land reserves were combined into one park. The Great Otway National Park is notable for its diverse range of landscapes and vegetation types. It was created after a successful campaign by the community, lead by the Otway Ranges Environment Network.
The park runs along the coast in the Otway Ranges, offering good access to beaches and to the Otway forest. There are many walking tracks in the park allowing access to the beaches. The Cape Otway Lighthouse is adjacent to the park, and open to tourists several days a week (visits by arrangement).

The park is also a popular area for interstate and international tourists. Many companies operate tours in the region for tourists.

Great Otway National Park is a very reliable location for koala spotting as many koalas have made the area their home.