Thomas Merrill (born April 17, 1986) is an American racing driver who competes in the Trans-Am Series and Porsche Carrera Cup North America.

Alongside Nicky Catsburg and Chandler Hull, he was the 2023 Asian Le Mans Series champion in the GT class.

[5] In 2008, Merrill graduated to the Rolex Sports Car Series, embarking on a part-time program in the GT class for PR1 Motorsports.

[16] In early 2020, Merrill embarked on a one-off effort in the IMSA Prototype Challenge, driving for K2R Motorsports alongside Steven Thomas.

The duo scored a Bronze Cup-class victory at Daytona,[17] before teaming up again for the season finale at Road Atlanta, where they would claim an overall podium.

His Trans-Am program formed the majority of his efforts, as he claimed six podiums and one race victory during the season,[22] finishing fourth in the TA2 championship once again.

[23] Merrill also competed in the Michelin Endurance Cup sub-championship of the 2021 IMSA SportsCar Championship, driving in the LMP2 class for WIN Autosport alongside Tristan Nunez and former teammate Thomas.

Matos began the weekend with a strong points lead, however a 40th-place finish for the Brazilian and a race victory for Merrill saw the latter take the championship.

[3] Merrill made a number of additional one-off appearance during 2022, including a podium finish for Jr III Racing in the IMSA Prototype Challenge at Mid-Ohio.

[40] In Trans-Am, Merrill entered the final round at COTA in the hunt for the championship, but ultimately fell short to Brent Crews.