Shōdai Naoya (正代 直也, born November 5, 1991) is a Japanese professional sumo wrestler from Uto, Kumamoto.

In his final year at Kumamoto agricultural high school he won the youth national sumo championship.

In May when ranked in jonokuchi (the beginning level of professional sumo), he faced Shiba on day 5 and beat him for the first time.

He faced Shiba again on day 9 and lost, however his 6–1 record was good enough to advance him to the next higher level, makushita in the November tournament.

He lost his third and fourth matches in this tournament to Higoarashi and Asatenmai, however still finished with a promising 5–2 record which allowed him to advance higher up the makushita ranks.

[10] In the January tournament he became the 20th wrestler from Kumamoto prefecture to attain the highest rank of sumo since the end of World War II.

In November 2016 he scored eleven wins against four losses from the rank of maegashira 3, sharing the Fighting Spirit prize with Ishiura.

[12] He narrowly missed out on a winning record in his sekiwake debut, and remained in the junior san'yaku ranks for the following tournament at komusubi.

In November 2019 he was a runner-up to Hakuhō with an 11–4 record and earned the Fighting Spirit Prize by defeating Asanoyama on the final day.

[17] In the September 2020 tournament Shōdai won his first championship with a 13–2 record, defeating Tobizaru on the final day to avoid the need for a play-off.

[20] The Japan Sumo Association announced after the September 2020 tournament or basho that they would convene an extraordinary meeting to discuss Shōdai's promotion to the second-highest rank of ōzeki.

[23] Shōdai had a 3–1 start in his ōzeki debut in the November 2020 tournament, but was forced to withdraw on Day 5 with an injury to his left ankle.

[29] Despite these drawbacks, as well as starting the tournament with a 1–5 record, Shōdai won 8 of his remaining 9 bouts, including wins over runner-up Takayasu and champion Wakatakakage to successfully avoid demotion.

Shōdai later said that it had felt like a long time since he was on the offensive throughout a match and that his victory did not seem real to him until he saw the audience throwing cushions.

Having organized his wedding reception after the 2025 NHK charity tournament in February, he also disclosed that his wife would be wearing the equivalent of 3 billion yen in jewelry.

[37] Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique     Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi Terunofuji (retired) Kotozakura Hōshōryū Ōnosato Wakamotoharu Daieishō Abi Wakatakakage Takanoshō Kirishima Tobizaru Atamifuji Gōnoyama Ōhō Shōdai Ura Hiradoumi Chiyoshōma Takayasu Ichiyamamoto Endō Mitakeumi Rōga Takarafuji Churanoumi Ōshōma Tamawashi Meisei Midorifuji Takerufuji Nishikigi Ōnokatsu Shōnannoumi Kotoshōhō Hokutofuji Kinbōzan Hakuōhō Kitanowaka Tamashōhō Kagayaki Nishikifuji Tokihayate