Events from the year 1863 in Japan.
Incumbents
Events
- March 11 - Order to expel barbarians issued by the Emperor.
- July 16 - Battle of Shimonoseki Straits
- July 20-August 14 - First Shimonoseki Campaign
- August 15–17 - Bombardment of Kagoshima
- September 29 - Tenchūgumi Incident
- December 29 - Second Japanese Embassy to Europe (1863)
Births
- February 23 - Katsusaburō Yamagiwa, pathologist
- March 14 - Tokutomi Sohō
Deaths
- August 27 - Aizawa Seishisai
- October 27? - Serizawa Kamo
