The Tokyo Marathon is an annual marathon sporting event in Tokyo, Japan. It is a World Athletics Platinum Label marathon and one of the six World Marathon Majors. The latest edition of the race took place on 3 March 2024. It is sponsored by Tokyo Metro.

Masakazu Fujiwara, in Japanese 藤原正和, is Japanese long-distance runner, who specializes in the marathon. He has a personal best of 2:08:12 hours for the event. He was the 2013 Japanese champion in the marathon and won the 2010 Tokyo Marathon. He trains at Honda Sports team.