Naoto Sago (佐合尚人, Sagō Naoto, is a Japanese karateka.

He won the silver medal in the men's kumite −60 kg event at the 2018 World Karate Championships held in Madrid, Spain.

[1][2] He represented Japan at the 2020 Summer Olympics in karate.

[3][4] He competed in the men's 67 kg event where he did not advance to compete in the semifinals.

This biographical article related to karate in Japan is a stub.