Shu Masuda (増田 珠, Masuda Shū, born May 21, 1999) is a Japanese professional baseball Infielder for the Tokyo Yakult Swallows of Nippon Professional Baseball.

[3] In 2020, Masuda spent the season rehabilitating his right wrist and was unable to play in the Pacific League.

[5] He recorded his first hit that day, a home run, against the Chiba Lotte Marines.

[6] While his main players tested positive for COVID-19 and were out for rehabilitation, he was active, hitting the first two runs hit of the game on August 26 against the Hokkaido Nippon-Ham Fighters, And He was a member of the "Chikugo Hawks" and supported the team until the main players returned.

)[7] He finished the regular season with a .256 batting average, one home run, and 6 RBI in 15 games.