This list of nations is a list of nations mentioned in An American Oddity through the current point in the timeline.

• Algiers
• Ethiopia
• Morocco
• Tripoli
• Tunis

• Byzantium
• Israel
• Japan
• Persia
• The Ottoman Empire
• Siam
• Qing (China)

• France
• Germany
• The Holy Roman Empire
• Denmark
• Great Britain
• Hungary
• Italy
• Naples
• Norway
• Portugal
• Sardinia
• Sicily
• Sweden
• the Netherlands
• The Papal States
• Spain
• Tuscany
• Russia
• Switzerland

• Imperial State of Mexico
• The United States of America

• None

• Brazil
• Gran Columbia
• Peru
• Argentina