See main article: article and 2021 Atlanta Open.
Dominic Inglot and Austin Krajicek were the reigning champions from when the tournament was last held in 2019,[1] but chose not to participate this year.
Reilly Opelka and Jannik Sinner won the title, defeating Steve Johnson and Jordan Thompson in the final, 6–4, 6–7(6–8), [10–3].