Yūto Koga (古賀 悠斗, Koga Yūto, born 10 September 1999) is a Japanese professional baseball catcher for the Saitama Seibu Lions of Nippon Professional Baseball (NPB).

[5] In 26 games during the season, Koga recorded a .155 batting average, nine hits, one home run and four RBI.

In 2023, he finished the season with a .218 batting average, 52 hits, two home runs and 20 RBI in 100 games.

In 2024, he played 105 games, recording a .228 batting average, 56 hits, three home runs and 12 RBI.

[6] Koga represented Japan in the 2017 U-18 Baseball World Cup, held in Thunder Bay, Canada, where the Japanese squad won the bronze medal.