The 2021 Super Formula Lights Championship was the second Super Formula Lights Championship season, after the Japanese Formula 3 Championship was rebranded following the end of the 2019 season.
It featured drivers competing in Formula 3 cars with Dallara 320 chassis and with engines made by three different manufacturers, a similar regulation format to the Euroformula Open Championship.
The calendar for the 2021 season was announced on 30 October 2020.
The championship supported Super Formula at all of its races.
[6] Because of this, the calendar change announced by Super Formula on 12 April 2021 was also adopted by Super Formula Lights.