Masao Suenaga (末永正雄, Suenaga Masao, 13 February 1978, Kagoshima) is a Japanese professional drifting driver, currently competing in the D1 Grand Prix series for D-Max. He is the younger brother of Naoto who both were taught by Nobushige Kumakubo. He is one of the few D1GP drivers to compete the spinoff D1 Street Legal series in his own FD RX-7 winning the first two rounds of the inaugural season. Suenaga competed in the M150 20B-Powered FD3S RX-7 in the inaugural Formula Drift: Asia at Fuji Speedway Japan where he would take first place against Masashi Yokoi.