| Kiyokuni Katsuo | |
|---|---|
| 清國 勝雄 | |
 | |
| Personal information | |
| Born | Tadao Sato 20 November 1941 Ogachi, Akita, Japan |
| Height | 1.82 m (5 ft 11+1⁄2 in) |
| Weight | 134 kg (295 lb) |
| Career | |
| Stable | Isegahama |
| Record | 706–507–32 |
| Debut | September, 1956 |
| Highest rank | Ōzeki (July 1969) |
| Retired | January, 1974 |
| Elder name | Isegahama |
| Championships | 1 (Makuuchi) |
| Special Prizes | Outstanding Performance (3) Technique (4) |
| Gold Stars | 7 Tochinoumi (3) Kashiwado (2) Sadanoyama (2) |
| * Up to date as of June 2020. | |
Kiyokuni Katsuo (born 20 November 1941 as Tadao Sato) is a former sumo wrestler from Ogachi, Akita, Japan. His highest rank was ōzeki, which he held from 1969 to 1974. He won one top division yūshō or tournament championship and was a runner-up in five other tournaments. He also earned seven special prizes and seven gold stars. After his retirement he was the head coach of Isegahama stable.