South Island (disambiguation)

The South Island is the southern of the two main islands of New Zealand.
South Island may also refer to:

The setting of he highly successful video game, Sonic the Hedgehog.
South Island (McDonald Islands)
South Island, County Down, a townland in County Down, Northern Ireland
Yuzhny Island, the southern of the two large islands of Novaya Zemlya
South Island, Cocos (Keeling) Islands
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