Hidenoyama Raigorō (秀ノ山 雷五郎, 1808 – June 16, 1862) was a Japanese sumo wrestler from Kesennuma, Mutsu Province.

[1] In 1823, he attempted to make his debut in Sekinoto stable [ja], but he was completely ignored by his master (komusubi Arakuma Rikinosuke) due to his short height of only 1.51 m (4 ft 11+1⁄2 in), and did nothing but chores and was not allowed to train or even step in the ring.

[2] He joined Hidenoyama stable, led by ōzeki Genjiyama, in 1827 and made his debut in March 1828, under the shikona, or ring name, Kitayama Tatsugorō (北山 辰五郎).

He was not one of the greatest wrestlers of his time, but received the licence because he had influential backers[3] and is even sometimes assimilated as a full member of the Yoshida family.

[1] Hidenoyama served as a judge (naka-aratame, modern shimpan) but this gave him many opportunities to give favourable decisions to his own pupils.

[1] He was not good at wrestling against skillful wrestlers like sekiwake Inagawa (稲川) and ōzeki Tsurugizan, but he was able to compensate for his small size, roundness and fragility by training hard.