In sumo wrestling, Hakkaku (八角) is a toshiyori name. The name is currently held by former yokozuna Hokutoumi Nobuyoshi.
Hakkaku Generations
- Stable owners in bold.
| Generation | Name at retirement | Highest rank | Stable | Period | Remarks |
|---|---|---|---|---|---|
| 1st | Kimenzan Tanigorō | maegashira 4 | Inagawa-Ōnomatsu-Kimenzan-Chiganoura | 1879.6-1884.6 (died) | |
| 2nd | Ōnaruto Nadaemon | ōzeki | Onogawa-Tamagaki-Umegatani-Ikazuchi-Hakkaku | 1885.12-1908.1 (died) | 二枚鑑札 |
| 3rd | Ōnaruto Nadaemon | sekiwake | Hakkaku-Ikazuchi-Hakkaku | 1921.5-1942.7 (died) | |
| 4th | Kojimagawa Shoukichi | maegashira 5 | Tatsunami | 1942.5-1946.9 (died) | |
| 5th | Midorikuni Masao | maegashira 9 | Tatsunami | 1951.1-1981.9 (died) | |
| 6th | Fukunoumi Nanao | maegashira 10 | Asahiyama | 1982.9-1991.5 | changed name to Nakagawa (11th) |
| 7th | Shimanishiki Hiroshi | maegashira 1 | Shibatayama-Takadagawa-Takasago | 1991.5-1993.9 (retired) | |
| 8th | Hokutoumi Nobuyoshi | yokozuna | Kokonoe | 1993.9- |