Gakuto Wakabayashi (若林 楽人, Wakabayashi Gakuto, born April 13, 1998) is a Japanese professional baseball outfielder for the Yomiuri Giants of Nippon Professional Baseball (NPB).

Wakabayashi made his NPB debut for the Saitama Seibu Lions on March 26, 2021.

Wakabayashi played in 19 games for the Lions in 2024, batting .129/.156/.274 with three home runs, five RBI, and two stolen bases.

On June 24, 2024, Wakabayashi was traded to the Yomiuri Giants in exchange for Seiya Matsubara.

[3] This biographical article relating to a Japanese baseball outfielder is a stub.