Kazuki Oki (大木 一輝, Ohki Kazuki) (born 1 December 2002) is a Japanese racing driver who is set to compete for GAINER in Super GT.

Oki previously raced in Super Taikyu ST-X with Team Impul.

[1] Oki started his formula racing career in 2022 Formula Regional Japanese Championship with TOM'S where he shared with Yorikatsu Tsujiko.

Oki made his full season racing debut in Super Taikyu ST-X on 2023 for Naniwa Denso Team Impul alongside Yuki Tanaka, and Super GT champion Kazuki Hiramine.

[5] Oki then got announced to be the driver for GAINER team alongside Ryuichiro Tomita and Keishi Ishikawa for the last round at Suzuka.