Tarran Mackenzie (born 29 October 1995,[1] often known as Taz)[2] is a professional road racer of solo motorcycles, based in Ashby-de-la-Zouch, Leicestershire, England.

During 2023 he contested the World Supersport Championship for Japan-based MIE Honda run by Midori Moriwaki,[3] winning his first world championship supersport race after continuing to ride on a wet track with dry tyres, when competitors were losing time pitting for wheel-changes.

[7][8][9] Mackenzie's 2022 BSB season ended on 25 September with a crash at Oulton Park, when he fell at the chicane and slid across the track under an oncoming motorcycle, breaking his left femur.

For 2012, he was chosen for the Red Bull MotoGP Rookies Cup race series, held across various European countries.

[17] He sustained a leg injury in BSB early-season practice and could not participate in the scheduled wildcard entry at Assen.