Yamaguchi Tadasada | |
|---|---|
山口 正定 | |
 | |
| Grand Chamberlain to the Emperor | |
| In office 24 December 1878 – 22 March 1884 | |
| Monarch | Meiji |
| Preceded by | Tokudaiji Sanetsune Masataka Kawase (1873) Higashikuze Michitomi |
| Succeeded by | Tokudaiji Sanetsune |
| Governor of Ibaraki Prefecture | |
| In office 9 December 1871 – 20 July 1872 | |
| Monarch | Meiji |
| Preceded by | Yamaoka Tesshū |
| Succeeded by | Nomura Motosuke |
| Personal details | |
| Born | 18 October 1843 |
| Died | 21 March 1902 (aged 58) |
Yamaguchi Tadasada (Japanese: 山口 正定; 18 October 1843 – 21 March 1902) was an Imperial Japanese Navy veteran of the Boshin War and Meiji-era Japanese politician. He was the second governor of Ibaraki Prefecture (1872). He was Grand Chamberlain of Japan (1878–1884). He was a recipient of the Order of the Sacred Treasure (3rd class, 1888; 1st class, 1902) and the Order of the Rising Sun (2nd class, 1895).