The 2019 Blancpain GT World Challenge America was the 30th season of the United States Auto Club's Blancpain GT World Challenge America. It was the first under Blancpain sponsorship, taking over from the longtime Pirelli sponsorship, as part of the standardisation of names of Stéphane Ratel Organisation-run GT3 sprint racing series globally, following the series' acquisition by the SRO Motorsports Group.[1] It was also the last under Blancpain sponsorship, after they and the SRO concluded their partnership at the end of 2019.[2] The season began on 2 March in Austin and ended on 20 October at Las Vegas.