Kazuki Hoshino (星野一樹 - Hoshino Kazuki; born October 13, 1977) is a semi-retired Japanese professional racing driver and current team principal (team director) of Team Impul in the Super GT Series and Super Formula Championship. He is the son of former racing driver and Impul co-founder, Kazuyoshi Hoshino. He is a two-time Super GT GT300 class champion (2008, 2010), a four-time Super Taikyu Series champion (2004 ST-3 class, 2014, 2018, and 2019 ST-X class), and a former Nissan factory GT500 driver with his father's team from 2006 to 2007 where he won the 2006 Suzuka 1000km. He also raced in the Formula Nippon (now Super Formula) Championship for Impul in 2006.

Hoshino announced his retirement from racing in Super GT after the 2021 season, and became the Technical Director at Team Impul in 2022. That season, Impul won its first GT500 class championship in 27 years. In 2023, Hoshino succeeded his father as the team director of Impul's Super GT and Super Formula teams. Hoshino also announced the creation of a new team in Super Taikyu, which would compete in the ST-Z (GT4) class with a new Nissan Z GT4.

Outside of Japan, Hoshino competed in the Nürburgring 24 Hours on several occasions, finishing ninth overall in 2015 alongside Michael Krumm, Lucas Ordoñez, and Alex Buncombe. In 2013, Hoshino participated in the Blancpain Endurance Series (now GT World Challenge Europe Endurance Cup with JRM Motorsport alongside Steven Kane and Peter Dumbreck.

Complete JGTC/Super GT results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) yearTeamCarClass123456789DCPts2003 Team Daishin Nissan Silvia GT300TAI7FSW6SUG7FSW4FSW2TRM4AUT10SUZ46th612004 Team Daishin Nissan Z GT300 TAI8SUG11SEP7TOK9TRM17AUT4SUZ67th29 2005 MOLA Nissan Z GT300OKA8FSW7SEP6SUGRetTRM1FSW4AUT6SUZ45th592006 Team Impul Nissan Z GT500SUZ13OKA6FSW5SEP3SUG6SUZ1TRM13AUT4FSW128th672007 Team Impul Nissan Z GT500SUZ11OKA8FSW10SEP3SUG7SUZRetTRMRetAUTRetFSW211th342008 MOLA Nissan Z GT300SUZRetOKA4FSW2SEP2SUG5SUZ1TRM7AUT4FSW61st782009 Team Nishizawa MOLA Nissan Z GT300OKA7SUZ3FSW6SEP4SUG6SUZ1FSW9AUT8TRM77th622010Hasemi Motor Sport Nissan ZGT300SUZ5OKA3FSW5SEP5SUG2SUZRetFSWCTRM11st642011 A speed Aston Martin Vantage GT2 GT300OKA1FSWRetSEPRetSUG8SUZ12FSW9AUT11TRM48th332012 A speed Aston Martin Vantage GT2 GT300OKA113rd73Aston Martin Vantage GT3FSW3SEP3SUGRetSUZ1FSWRetAUT1TRM52013 NDDP Racing Nissan GT-R NISMO GT3 GT300OKARetFSWRetSEP10SUG9SUZ9FSW5FSWAUTRetTRM917th142014 NDDP Racing Nissan GT-R NISMO GT3 GT300OKA4FSW5AUT4SUG9FSW10SUZ19CHA1TRM84th482015 NDDP Racing Nissan GT-R NISMO GT3 GT300OKA8FSW2CHA1FSWRetSUZ14SUG8AUT1TRMRet4th612016 NDDP Racing Nissan GT-R NISMO GT3 GT300OKA10FSW1SUG5FSW6SUZ10CHA2TRM13TRM64th542017 NDDP Racing Nissan GT-R NISMO GT3 GT300OKA7FSW6AUT9SUG8FSWRetSUZ14CHA9TRM1017th172018 GAINER Nissan GT-R NISMO GT3 GT300OKA13FSW11SUZ10CHARetFSW8SUG2AUT9TRM1516th222019 GAINER Nissan GT-R NISMO GT3GT300OKARetFSW10SUZ12CHA1FSW14AUT10SUG15TRM1614th222020 GAINER Nissan GT-R NISMO GT3GT300FSW5FSW10SUZ5TRM11FSW12SUZ21TRM7FSW612th222021 GAINER Nissan GT-R NISMO GT3GT300 OKA FUJ1 MOT1 SUZ SUG AUT MOT2 FUJ2 18th 13

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