Keita "K-Taro" Nakamura (born May 22, 1984) is a Japanese mixed martial artist.

Nakamura is a senior studying law in college while pursing a professional career in mixed martial arts. He has competed in professional SHOOTO, GCM's DOG and Demolition, as well as the Ultimate Fighting Championship. He trains at the Wajitsu Keishukai network, also teaching there, as well as the Marupuro gym, and the Shinagawa Ranger boxing gym.

His last fight was a loss by split decision against Rob Emerson at UFC 81 on February 2, 2008 at the Mandalay Bay Events Center in Las Vegas, Nevada.

After a split decision defeat to Robert Emerson in the UFC this past February, the 24-year-old Nakamura announced his retirement from MMA. Disappointed by his three UFC defeats, "K-Taro" also suffered from vision issues following the Emerson bout, due his opponent's toe impairing his vision after a high kick attempt.

Despite his claim that he would become a police officer, Nakamura's retirement lasted a mere three months.

Nakamura suffered a devastating loss to heavily underdog Korean fighter, Jang Yong Kim in his first post-retirement comeback fight.