Imperial Japanese Navy (Japanese ; 大日本帝国海軍, Dai-Nippon Teikoku Kaigun), also known as IJN, was the navy of the Empire of Japan from 1869 until 1947.

The IJN was created in 1868 by the Meiji Restoration. It won against larger navies in the First Sino-Japanese War (1894-1895) and Russo-Japanese War (1904-1905) World War 1 (1914-1918) Second Sino-Japanese War (1937-1945) World War 2 (1941-1945) and was dissolved.