The GT World Challenge Asia (formerly Blancpain GT Series Asia and Blancpain GT World Challenge Asia) is a GT series motor racing competition promoted by the Stéphane Ratel Organisation and organized by Team Asia One GT Management.
From its inception in 2017 to 2023, GT World Challenge Asia was a multi-class championship featuring GT3 and GT4 cars. In 2024, the series adopted the same GT3-only format as the other GT World Challenge series on other continents.
The Japan Cup series debuted in 2022 as a parallel championship within GT World Challenge Asia, with races held exclusively in Japan. It was split into a separate championship in 2024.
Each season consists of six rounds, each with two 60-minute races. Each entry has two drivers, which must swap in a compulsory pitstop between the 25th and 35th minute.