Sebastian Arias (born October 28, 1998) is a Colombian professional stock car racing driver who last competed part-time in the ARCA Menards Series, driving the No.

9 Chevrolet SS for Rev Racing, and part-time in the ARCA Menards Series West, driving the No.

Arias would start racing at age 11, after his father sold his family home to buy him a Legends car.

He and his family moved to Miami, Florida, to run late model races.

[1] In 2017, he drove for two races in the Southern Pro Am Truck Series, which were both at the Homestead-Miami Speedway Road Course.

He would officially be the second Colombian racer to drive in a NASCAR-sanctioned race, following Juan Pablo Montoya.