The 2011 Autobacs Super GT Series was the nineteenth season of the Japan Automobile Federation Super GT Championship including the All Japan Grand Touring Car Championship (JGTC) era and the seventh season as the Super GT series. It also marked the twenty-ninth season of a JAF-sanctioned sports car racing championship dating back to the All Japan Sports Prototype Championship. It is a series for Grand Touring race cars divided into two categories: GT500 and GT300. The season began on May 1 and ended on November 13, 2011 after 8 races and 1 non-championship race. The season was due to start on April 2, but the 2011 Tōhoku earthquake and tsunami caused its postponement.
In the GT500 class, MOLA won the championship in their first ever season in the GT500 class. The MOLA drivers also scored some notable achievements with this title victory: Masataka Yanagida, who had won the GT300 title in 2003 and 2010, becomes the first (and so far only) driver to win both the GT500 and the GT300 class, while Ronnie Quintarelli would win his first out of four GT500 titles in this season. In the GT300 class, Goodsmile Racing & Studie shocked everyone by winning the championship with the Hatsune Miku itasha-liveried BMW Z4 GT3, giving series veteran Nobuteru Taniguchi and Taku Bamba their first title in this series. It also marked the first championship title for FIA GT3-specification cars in this series.