Southern Island may refer to

• Yuzhny Island, an island in Russia
• The Hoenn Region in Pokémon
• {{SS|Southern Island}}, a British cargo ship in service 1947-51

• Kurdistan province
• Kurdistan Province, Iran
• Kurdistan Province (Iran)
• Kurdistan Region
• Kurdistan Republic of Mahabad
• Kurdistan Revolutionary Party
• Kurdistansky Uyezd
• Kurdistan Socialist Democratic Party
• Kurdistan spotted newt
• Kurdistan Toilers' Party
• Kurdistan Toilers’ Party
• Kurdistan TV
• Kurdistan University
• Kurdistan University (Iran)
• Kurdistan Worker's Party
• Kurdistan workers party
• Kurdistan Workers Party/States Listed as Terrorist
• Kurdiya
• Kurdjali
• Kurd Laßwitz
• Kurd Mountains
• Kurdoev
• Kurds in Armenia
• Kurds in Iran
• Kurds in Lebanon