Rahul Raj Mayer, (born 20 July 1996 in Kuala Lumpur) is a Malaysian racing driver.

In 2010 he came in 2nd for the Yamaha SL Cup (Senior) and 3rd for the Rotax Max Challenge Malaysia (Junior) series.

[4] In 2013 Mayer travelled to the UK to compete in the BRDC Formula 4 Series with team Hillspeed Racing.

[12] Through his hiatus from motorsport he then spent the next 8 years pursuing higher education as well as co-founding 2 separate businesses.

In 2022, Mayer reignited his motorsports career by competing in the Sepang 1000KM event in the SP2 category with HiRev Dreamchaser which saw him end with a "DNF" due to technical difficulties.