Kiyonomori Masao
Sumo wrestler
清の盛政夫
- Born
- 8 April 1935, Akita Prefecture
- Died
- 20 April 2019
- Citizenship
- Japan, Empire of Japan
- Sport
- sumo
- Occupation
- rikishi
Kiyonomori Masao (8 April 1935 – 20 April 2019, real name Masao Sasaki) was a sumo wrestler from Ōmori, Akita, Japan. He made his professional debut in January 1953 and reached the top division in March 1959. His highest rank was maegashira 9. Upon retirement from active competition he became an elder in the Japan Sumo Association and took charge of Kise stable from his father-in-law Katsuragawa. He reached the Sumo Association's mandatory retirement age in April 2000. He died of pneumonia in April 2019 at the age of 84.
External links
Facts from Wikidata Q6419057 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.
Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.