Kyotaro Fujimoto (藤本 京太郎 [ɸɯdʑimoto kʲoːtaɾoː], Fujimoto Kyōtarō; born June 23, 1986) is a Japanese former professional boxer who competed from 2011 to 2019 and a kickboxer. He began competing again as a professional kickboxer in 2021.

He is the former K-1 Heavyweight Champion and successfully defended the title against kickboxing legend Peter Aerts at K-1 World Grand Prix 2010 in Yokohama. He was also the K-1 World Grand Prix 2008 in Fukuoka tournament finalist and K-1 Young Japan GP 2007 champion.

Fujimoto was born in Osaka, Japan, on June 23, 1986. He started learning karate of Uomoto-ryū (魚本流) as a child. His parents divorced in 1997 and he lived with his mother, sisters and grandmother.

Kyotaro moved to Tokyo and joined Dragon Dojo established by Kensaku Maeda. He debuted on May 17, 2006, against Junichi Hanada.

Kyotaro entered the world of K-1 when he fought and won the K-1 Tryout 2007 Survival tournament in Tokyo by defeating Tatsunori Momose in the semi-final and Takumi Sato in the final, all by decision. This tournament was designed to showcase new talent. He then fought Kyoung Suk Kim during the opening fights at K-1 World Grand Prix 2007 in Seoul Final 16 defeating Kim by 2nd Round Knockout.

He further proved himself as a top K-1 contender by defeating the K-1 World Grand Prix 2004 in Las Vegas II and the K-1 World Grand Prix 2007 in Hawaii tournament champion Mighty Mo at K-1 World Grand Prix 2008 in Yokohama. Kyotaro was then invited to fight in the K-1 World GP 2008 in Fukuoka in which he became the runner up losing to Brazilian Karateka Ewerton Teixeira.

On March 28, 2009, Kyotaro won the K-1 Heavyweight (-100 kg) Title tournament by knocking out Melvin Manhoef in semifinals and beating Gokhan Saki in finals by extra round majority decision. Kyotaro became the second fighter after Badr Hari to win the title in K-1 Light Heavyweight division.

On December 5, 2009, he faced Tyrone Spong at the K-1 World Grand Prix 2009 Final and lost by unanimous decision.