Kakuryū Rikisaburō is a former professional sumo wrestler from Sükhbaatar Province, Mongolia. He was a member of the top makuuchi division from November 2006 until his retirement in March 2021, and was the 71st yokozuna in history.

Makuuchi (幕内), or makunouchi (幕の内), is the top division of the six divisions of professional sumo. Its size is fixed at 42 wrestlers (rikishi), ordered into five ranks according to their ability as defined by their performance in previous tournaments.