Ryogoku Kokugikan, Tokyo · 1966-05-15 to 1966-05-29
The top-division championship went to Taiho Koki.
| Makuuchi | Taiho Koki |
| Juryo | Nagata |
| Makushita | Shinko |
| Sandanme | Kyuei# Tetsuo |
| Jonidan | Michinoyama |
| Jonokuchi | Naito Shigekiyo# |
| Shukun-sho | Daikirin Takayoshi |
| Kanto-sho | Tamanoumi Masahiro |
| Gino-sho | Kitanofuji Katsuaki |
Shukun-sho is for an outstanding performance, kanto-sho for fighting spirit and gino-sho for technique.
| Rank | Wrestler | Ring name | Record |
|---|---|---|---|
| Yokozuna 1 East | Taiho | 14–1 | |
| Yokozuna 1 West | Kashiwado | 12–3 | |
| Yokozuna 2 West | Sadanoyama | 0–0–15 | |
| Yokozuna 2 East | Tochinoumi | 1–3–11 | |
| Ozeki 1 East | Yutakayama | 9–6 | |
| Ozeki 1 West | Kitabayama | 6–9 | |
| Sekiwake 1 West | Tamanoshima | 10–5 | |
| Sekiwake 1 East | Kitanofuji | 10–5 | |
| Komusubi 1 East | Kiyokuni | 4–11 | |
| Komusubi 1 West | Myobudani | 6–9 | |
| Maegashira 1 West | Daigo | 5–10 | |
| Maegashira 1 East | Asasegawa | 0–4–11 | |
| Maegashira 2 East | Hasegawa | 9–6 | |
| Maegashira 2 West | Kotetsuyama | 4–11 | |
| Maegashira 3 West | Fujinishiki | 9–6 | |
| Maegashira 3 East | Kotozakura | 10–5 | |
| Maegashira 4 West | Wakamiyama | 7–8 | |
| Maegashira 4 East | Hirokawa | 3–12 | |
| Maegashira 5 East | Kirinji | 9–6 | |
| Maegashira 5 West | Toyokuni | 10–5 | |
| Maegashira 6 West | Kainoyama | 10–5 | |
| Maegashira 6 East | Wakachichibu | 6–9 | |
| Maegashira 7 East | Hanahikari | 5–10 | |
| Maegashira 7 West | Wakatenryu | 8–7 | |
| Maegashira 8 East | Daiyu | 7–8 | |
| Maegashira 8 West | Wakanaruto | 8–7 | |
| Maegashira 9 West | Kairyuyama | 9–6 | |
| Maegashira 9 East | Tochioyama | 8–7 | |
| Maegashira 10 East | Aonosato | 8–7 | |
| Maegashira 10 West | Asaoka | 2–13 | |
| Maegashira 11 West | Wakanoshima | 6–9 | |
| Maegashira 11 East | Kitanokuni | 6–9 | |
| Maegashira 12 West | Yoshinohana | 8–7 | |
| Maegashira 12 East | Oginohana | 7–8 | |
| Maegashira 13 East | Tsurugamine | 8–7 | |
| Maegashira 13 West | Wakanami | 7–8 | |
| Maegashira 14 West | Kiminishiki | 8–7 | |
| Maegashira 14 East | Oiteyama | 9–6 | |
| Maegashira 15 East | Kanenohana | 6–9 | |
| Maegashira 15 West | Fukunohana | 11–4 |
| Rank | Wrestler | Ring name | Record |
|---|---|---|---|
| Juryo 1 East | Tamaarashi | 3–12 | |
| Juryo 1 West | Misogidori | 7–8 | |
| Juryo 2 West | Wakasugiyama | 9–6 | |
| Juryo 2 East | Wakanokuni | 6–9 | |
| Juryo 3 East | Amatsukaze | 3–12 | |
| Juryo 3 West | Ogiyama | 8–7 | |
| Juryo 4 West | Wakafutase | 8–7 | |
| Juryo 4 East | Tochiazuma | 7–4–4 | |
| Juryo 5 East | Daishin | 12–3 | |
| Juryo 5 West | Aranami | 4–11 | |
| Juryo 6 West | Kiyonomori | 7–8 | |
| Juryo 6 East | Tensuiyama | 8–7 | |
| Juryo 7 East | Itogawa | 6–9 | |
| Juryo 7 West | Futagodake | 9–6 | |
| Juryo 8 West | Azumanishiki | 6–9 | |
| Juryo 8 East | Fujinokawa | 7–8 | |
| Juryo 9 West | Daimonji | 10–5 | |
| Juryo 9 East | Wakayoshiba | 9–6 | |
| Juryo 10 East | Orochigawa | 6–9 | |
| Juryo 10 West | Mutsuarashi | 7–8 | |
| Juryo 11 West | Toda | 8–7 | |
| Juryo 11 East | Fusanishiki | 8–7 | |
| Juryo 12 East | Maenoyama | 9–6 | |
| Juryo 12 West | Tsunenishiki | 6–9 | |
| Juryo 13 West | Tsugarukuni | 8–7 | |
| Juryo 13 East | Kitanohana | 9–6 | |
| Juryo 14 East | Aonoumi | 10–5 | |
| Juryo 14 West | Udagawa | 8–7 | |
| Juryo 15 East | Maedagawa | 10–5 | |
| Juryo 15 West | Sawakaze | 8–7 | |
| Juryo 16 West | Dairyu | 9–6 | |
| Juryo 16 East | Akinokuni | 8–7 | |
| Juryo 17 West | Kumanoura | 4–9–2 | |
| Juryo 17 East | Tenchiyama | 4–11 | |
| Juryo 18 East | Tochitada | 8–7 | |
| Juryo 18 West | Kamiyama# | 4–11 |