Cat Island may refer to:

Some islands of Japan are called Cat Island (猫島) due to a high population of cats.

• Aoshima, Ehime
• Fukashima [ceb; ja] (深島), an island of Saiki, ÅŒita
• Manabeshima, Okayama
• Tashirojima, Miyagi

• Cat Island (Arkansas), a 19th-century Mississippi River island near the border between Crittenden County and Phillips County

• Cat Island (Louisiana)
• Cat Island (Massachusetts), United States
• Cat Island (Mississippi), United States
• Cat Island (South Carolina), one of the Sea Islands in Beaufort County, South Carolina, United States
• Cat Island (Wisconsin), United States
• Cat Island National Wildlife Refuge, Louisiana, United States

• Cat Island (Antarctica)
• Cat Island (Tasmania), Australia
• Cat Island, Bahamas, Bahamas
• Cat Island (Rodrigues), Mauritius

• Cat Island, Rum Cay & San Salvador, a parliamentary constituency represented in the House of Assembly of the Bahamas
• Cat Island, a 1981 science fiction novel by Walter Jon Williams

• Cát Bà Island, Vietnam
• Wild Cat Island

This disambiguation page lists articles associated with the title Cat Island.
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