The 2015 Tokyo Marathon (Japanese: 東京マラソン 2015) was the ninth edition of the annual marathon race in Tokyo, Japan and was held on Sunday, 22 February. An IAAF Gold Label Road Race, it was the first World Marathon Majors event to be held that year and represented the third occasion that the Tokyo race was part of the elite-level marathon series. As in the previous year, the wheelchair race was principally a national affair. Wakako Tsuchida defended her title while Kota Hokinoue—winner at the 2014 Berlin Marathon—won the men's wheelchair race for the first time.