Count Katsu Yasuyoshi , born Katsu Yoshikuni , best known by his nickname Katsu Kaishū , was a Japanese statesman, naval engineer and military commander in the 19th century, during the late Tokugawa shogunate and early Meiji period.
- Occupation
- politician, university teacher, historian, writer
- Position held
- Rikugun sōsai, member of the Genrōin, Minister of the Navy of Japan
- Citizenship
- Japan
- Born
- March 12, 1823
- Died
- January 21, 1899, January 19, 1899
