Chaz Michael Mostert (born 10 April 1992) is an Australian professional racing driver competing in the Repco Supercars Championship.

[3] In 2010 Chaz Mostert got the chance to drive a Miles Racing Ford BF Falcon at Bathurst in the Fujitsu V8 Supercar Series.

Ford Performance Racing signed him for the final two rounds at Sandown and Homebush to drive the team's first Development Series car, a FG Falcon.

[7] Mostert's V8 Supercars debut was at the Perth 360 at Barbagallo Raceway for Dick Johnson Racing, replacing Jonny Reid in the seat.

Mostert also commenced a love-hate relationship at the Bathurst 1000 by heavily crashing in Friday practice and requiring an overnight rebuild.

In October 2014, Mostert won the 2014 Bathurst 1000 with co-driver Paul Morris, after overtaking the low-on-fuel Jamie Whincup on the final lap.

In the first event of his return from his 2015 crash, Mostert took pole position for the Sunday race at the Adelaide 500, an achievement he ranked at the time as only second to his Bathurst 1000 win.

[14] Despite four more poles during the season, Mostert didn't take a victory and finished seventh in the championship, one place behind team-mate Winterbottom.

Mostert set a new Bathurst 1000 lap record of 2:03.3736 on the 4th of December 2021 during the Top 10 Shootout qualifier while driving a Walkinshaw Andretti United Holden ZB Commodore.

[19] In 2011, Mostert competed in the Bathurst 12 Hour in a HSV VXR Turbo, finishing third in class with Ashley Walsh and Gerard McLeod.

Mostert's GT career launched from further entries in the GT3 class of the Bathurst 12 Hour, starting in 2017 in a customer MARC Cars Australia BMW M6 GT3.

In GT3, this has included two class victories in Asian Le Mans Series in the 2017-18 season and a fifth-place finish in the 2017 FIA GT World Cup at the Guia Circuit in Macau.