The 2011 Formula Challenge Japan was a multi-event motor racing championship for open-wheel formula racing cars, and the sixth season of the Formula Challenge Japan racing series, a young driver development series jointly supported by Honda, Toyota, and Nissan.
The championship featured a mix of manufacturer-affiliated drivers and independent entries, and commenced on 23 April and ended on 6 November.
Toyota junior Takamoto Katsuta won the championship by a five-point margin after winning three of the four races in the final round at Motegi, with fellow Toyota drivers Ryō Hirakawa and Kazuya Ishii coming second and third in the points standings.
Kazuki Hiramine finished fourth as the highest Honda-supported driver after taking three wins and the championship lead early on.
Rounds 8 and 9 were originally scheduled to be held on 3–4 September at Suzuka, but were cancelled due to adverse weather conditions caused by Tropical Storm Talas.