The United States Minor Outlying Islands, defined by ISO 3166-1, consists of the following list of islands. They are collectively represented by the two-letter code UM. Their Internet country code top-level domain (ccTLD) is .um.

• Baker Island
• Howland Island
• Jarvis Island
• Johnston Atoll
• Kingman Reef
• Midway Atoll
• Navassa Island
• Palmyra Atoll
• Wake Island