South Sea or South Seas may refer to:

• The South Sea Company
• The former Zuiderzee, today's IJsselmeer, in the Netherlands
• The South China Sea
• The Pacific Ocean south of Panama
• In South Korea, it is sometimes used for the East China Sea
• In plural, any seas south of the Equator, especially in the Pacific and Indian Oceans
• Nanyang (geographical region)

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.