Discovery Bay is a residential development in Hong Kong, on Lantau Island. Discovery Bay may also refer to:
Australia Discovery Bay (Australia), a bay straddling the border between South Australia and Victoria in Australia Discovery Bay Coastal Park, a protected area in Victoria (Australia) Discovery Bay Marine National Park, a marine protected area in Victoria (Australia)
United States Discovery Bay, California, community Discovery Bay (Washington), bay Discovery Bay, Washington, community
Other Discovery Bay (Antarctica), a bay in the South Shetland Islands Discovery Bay, Jamaica, a town in Jamaica A planned (but never built) land at Disneyland
See also Disco Bay