| Native Name: | 大雄 辰實 |
| Daiyū Tatsumi | |
| Birth Name: | Tatsumi Yanagida |
| Birth Date: | 1940 5, df=yes |
| Birth Place: | Ōnejime, Kagoshima, Japan |
| Weight: | 113kg (249lb) |
| Heya: | Izutsu |
| Record: | 614-596-4 |
| Debut: | May, 1956 |
| Highestrank: | Maegashira 1 (September, 1968) |
| Eldername: | Kabutoyama |
| Retireddate: | September, 1972 |
| Yushos: | 2 (Jūryō) |
| Update: | June 2020 |
Daiyū Tatsumi (born 27 May 1940 as Tatsumi Yanagida) is a former sumo wrestler from Ōnejime, Kagoshima, Japan. He made his professional debut in May 1956 and reached the top division in May 1963. His highest rank was maegashira 1. Upon retirement from active competition he became an elder in the Japan Sumo Association under the name Kabutoyama, coaching at Izutsu stable. In 1989 he branched out from Izutsu and started up Kabutoyama stable, which he ran until it folded in December 2002. He became a coach at Minato stable, and worked there until he reached the Sumo Association's mandatory retirement age of 65.[1]