Charles Baxter Quarterman (born 6 September 1998) is a British former cyclist, who competed as professional from 2017 to 2023.

For the 2017 season he joined the Luxembourg-based team Leopard Pro Cycling.

[5] He won the Under-23 British National Time Trial Championships in 2019.

[6] In August 2019, Quarterman joined UCI WorldTeam Trek–Segafredo as a stagiaire for the second half of the season,[7] before joining the team permanently in 2020.

Quarterman was educated at the Abingdon School from 2010 to 2017 and is now based near Annecy, France.