List of sumo tournament second division champions
This is a list of wrestlers who have won the sumo second division championship since 1909, when the current championship system was established. These official tournaments are held exclusively in Japan.
The wrestler who has won the most championships is Masurao, with five. Wakanami, Tagaryū, Ichinojō, Terunofuji, Asanoyama, Takerufuji and Wakatakakage are the only wrestlers to have won a championship after winning a top division or title. The only wrestlers to win the championship but never earn promotion to the top division are Genbuyama, Sagahikari, Tochiizumi, Hidenohana, Daigaku, and .
1958 to present
The first table below lists the champions since the six tournament system instituted in 1958. The championship is determined by the wrestler with the highest win–loss score after fifteen bouts, held at a rate of one per day over the duration of the 15-day tournament. In the event of a tie a play-off is held between the wrestlers concerned. This is denoted by P for every additional bout. Names in bold mark an undefeated victory. Figures in brackets mark the number of championships earned up to that tournament for wrestlers who won the championship more than once.1909 to 1957
The following tables list the champions before the introduction of the current tournament system. The system was less regularized between years, with a different number of tournaments held at different times and in different venues, and often with a changing number of bouts fought in each tournament.| January | March | May | September | November | |
| Tokyo | Osaka | Tokyo | Tokyo | Kyushu | |
| 1957 | Oikawa | Fusanishiki | Oikawa | Atagoyama | Sagahikari |
| New Year | Spring | Summer | Autumn | |
| Tokyo | Osaka | Tokyo | Tokyo | |
| 1956 | Iwakaze | Takanishiki | Tachikaze | Otayama |
| 1955 | Hoshikabuto | Tochihikari | Hirakagawa | Kamioiyama |
| 1954 | Kiryugawa | Aichiyama | Wakanoumi I | Hakuryuyama |
| 1953 | Naruyama | Dewaminato II | Naruyama | Toyonobori |
| Spring | Summer | Autumn | |
| Tokyo | Tokyo | Tokyo | |
| 1952 | Fujitayama | Imaoshima* | Kakureizan* |
| 1951 | Hiodoshi | Oiwazan | Shionishiki |
| 1950 | Masumiyama | Kainoyama | Yonekawa* |
| 1949 | Narutoumi | Onobori | Kotogahama |
| 1948 | no tournament | Kuninobori | Kiyoenami |
| 1947 | no tournament | Dewanishiki | Kuninobori |
| 1946 | no tournament | no tournament | Iwahira* |
| 1945 | no tournament | Chiyonoyama (2) | Hajimayama |
| 1944 | Kusunishiki | Hirosegawa | Chiyonoyama (1) |
| 1943 | Azumafuji | Mitsuneyama | no tournament |
| 1942 | Surugaumi | Surugaumi | no tournament |
| 1941 | Futamiyama | Terunobori | no tournament |
| 1940 | Futasegawa | Masuiyama I | no tournament |
| 1939 | Terukuni | Shikainami | no tournament |
| 1938 | Ryūozan | Fujinosato | no tournament |
| 1937 | Haguroyama | Kinkazan | no tournament |
| 1936 | Onami | Maedayama | no tournament |
| 1935 | Kasagiyama | Ayanishiki | no tournament |
| 1934 | Komanosato | Dewaminato I | no tournament |
| 1933 | Ayanobori | Choshinada | no tournament |
| Spring | March | Summer | October | |
| Tokyo | varied | Tokyo | varied | |
| 1932 | Onami | Toshuzan | Ononishiki* | Kyushuzan |
| 1931 | Takanohana | Kinkazan | Ōshio | Kaneminato |
| 1930 | Ayazakura* | Okitsuumi | Tokiwano | Okitsuumi |
| 1929 | Musashiyama | Shimizugawa | Shimizugawa | Ōshima† |
| 1928 | Tenryū | Koganoura | Wakashima | Wakashima |
| 1927 | Shinkai | Genbuyama | 'Hatasegawa | Hatasegawa |
†tournament held in September
| Spring | Summer | |
| 1926 | Takaragawa | Hoshikabuto |
| 1925 | Rainomine | Kenrokuzan |
| 1924 | Hitachidake | Nishikinada II |
| 1923 | Hitachiiwa | Ichinohama |
| 1922 | Noshirogata | Naranishiki |
| 1921 | Nishikinada I | Hitachishima |
| 1920 | Mayaoroshi* | Tsurugahama |
| 1919 | Akutsugawa | Akutsugawa |
| 1918 | Yahazuyama | Nishikinada I |
| 1917 | Tsunenohana | Wakahitachi |
| 1916 | Momijigawa | Chibagasaki |
| 1915 | Iwakiyama* | Genjiyama*† |
| 1914 | Ryōgoku | Ōnishiki |
| 1913 | Yamadagawa | Kashozan |
| 1912 | Kanenohana* | Uranohama* |
| 1911 | Ishiyama | Sakuragawa† |
| 1910 | Noshirogata | Tosanoura† |
| 1909 | see below‡ | Hakkuniyama*† |
†these tournaments were actually held the following month
''*A system giving the wrestler with the best tournament record a prize was introduced by the Mainichi newspaper in the second half of 1909, and this was officially integrated by the JSA in 1926. All tournaments predating the second tournament of 1909 did not recognize or award a championship.''