Mitsuhiro Ishida is a retired Japanese mixed martial artist who competed in Shooto, Strikeforce, PRIDE, DREAM, and DEEP. A professional competitor from 2001 until 2011, Ishida also participated in the Yarennoka event in the Saitama Super Arena in Japan.

Yarennoka! was a mixed martial arts (MMA) event that took place on December 31, 2007 at the Saitama Super Arena in Tokyo, Japan. The event was promoted by the Yarennoka! Executive Committee, composed of former Pride Fighting Championships executives, and held in association with Fighting and Entertainment Group, DEEP, and M-1 Global. The event aired on HDNet and was billed as "Fedor Returns" in the United States; while it was shown on SKY Perfect, a Japanese pay per view network.