Kazuya Ōshima

is a Japanese racing driver, currently racing in the Super GT Series for TGR Team Rookie Racing. Oshima is one of only three drivers that have won championships in both classes of Super GT, having won the GT300 Drivers' Championship in 2007, and the GT500 Drivers' Championship in 2019.

Until 2025, Oshima raced in the Super Formula Championship for Rookie Racing. He also won the 2009 Suzuka Summer Endurance race. Outside of Japan, he is a five-time class winner at the Nürburgring 24 Hours (2010, 2012, 2014, 2015, 2016) as a member of Gazoo Racing/Toyota Gazoo Racing.

Career Junior career Oshima made his formula series debut in 2005 at Formula Toyota where he won the title. Then he jumped to Japanese Formula 3 Championship with TOM'S. He competed for two seasons, and in 2006, he clinched runners up just lose out to the champion Adrian Sutil, while he managed to get seventh in Macau GP. Then he won the 2007 All-Japan Formula 3 Championship, also finished third in the 2007 Macau Grand Prix Formula 3 race. Then for 2008, Oshima also competed in the 2008 Formula 3 Euro Series with Manor Motorsports as a member of the Toyota Young Driver Program (TDP).

Super GT GT300 Oshima made his GT300 debut with APR, with Minoru Tanaka in 2006. He then won the title in 2007 with APR alongside Hiroaki Ishiura. For 2008, he made a one-off appearance with APR.

GT500 Oshima returns to Japan in 2009, and he stepped into GT500 with Team Kraft alongside his former GT300 Champion teammate Ishiura. He racef there for two seasons where he won two races in each year. After that he moves to Team LeMans to pair with Daisuke Ito for two years, where both pairs only get one win in 2012. Then he paired with Yuji Kunimoto for over three years. From 2016 & 2017, his new teammate Andrea Caldarelli with him clinched runners up, and third place in 16 and 17. Then Oshima paired with Felix Rosenqvist for one season. In 2019 Oshina alongside Kenta Yamashita won the title against the KeePer TOM'S of Ryo Hirakawa and Nick Cassidy.

After won the title, Team LeMans left the series. And Oshima moves to the new entrant Rookie Racing with new teammate Sho Tsuboi. Then he is the mainstay of Rookie Racing, where he paired again with Kenta Yamashita for 2022 & 2023 where they won one race each season. Oshima then paired with former Honda driver Nirei Fukuzumi for 2024.

Super Formula Oshima at the first Motegi round of the 2010 Formula Nippon season. Oshima made his Formula Nippon debut in 2009 after return from unsuccessful season in Europe, where he moves to Petronas TOM'S for two seasons. In 2010, he won a race. Then in 2011, he moved to Team LeMans for two seasons. After that, he did not compete in the series for four seasons, except one-off appearance in 2015 as he replaced Kazuki Nakajima for one race. Oshima came back to the rebranded Super Formula, as he returned to his former Team LeMans to race for three seasons. After Team LeMans stopped their operation in Super GT & Super Formula, Oshima moved to Rookie Racing. Oshima then stayed with the team for five seasons.

Racing record Career summary Season still in progress. ‡ Team standings

Complete Japanese Formula 3 results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) Year Team Engine 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DC Pts 2006 TDP Team TOM'S Toyota FUJ1 FUJ2 SUZ1 SUZ2 MOT1 MOT2 OKA1 OKA2 SUZ1 SUZ2 AUT1 AUT2 FUJ1 FUJ2 SUG1 SUG2 MOT1 2nd 185 2007 TDP Team TOM'S Toyota FUJ1 FUJ2 SUZ1 SUZ2 MOT1 MOT2 OKA1 OKA2 SUZ1 SUZ2 AUT1 AUT2 AUT3 FUJ1 FUJ2 SEN1 SEN2 SEN3 MOT1 MOT2 1st 262

Complete Super GT results † Driver did not finish, but was classified as he completed over 90% of the race distance. ‡ Half points awarded as less than 75% of race distance was completed. (Number) Driver did not take part in this sprint race, points are still awarded for the teammate's result. Season still in progress.

Complete Formula Nippon/Super Formula results ‡ Half points awarded as less than 75% of race distance was completed. Season still in progress.