Look up Seven Years' War in Wiktionary, the free dictionary.

Seven Year War may refer to:

• Seven Years' War (1756–63), among European powers and their colonies, encompassing the French and Indian War
  • Great Britain in the Seven Years' War
  • France in the Seven Years' War
• Northern Seven Years' War (1563–70), also known as the Nordic Seven Years' War, Sweden against Denmark and allies
• Japanese invasions of Korea (1592–98), sometimes referred to in Korean as the "Seven Year war"
• Gunboat War (1807–14), Britain against Denmark and Norway, during the Napoleonic Wars