Ōrora Satoshi (born April 26, 1983 as Anatoliy Valeryevich Mihahanov, Russian: Анатолий Валерьевич Михаханов) is a former sumo wrestler. His highest rank was makushita 43. In 2017, he became the heaviest professional sumo wrestler ever by reaching the weight of 288 kilograms (635 lb), surpassing the record previously held by Konishiki. He subsequently reached a peak weight of 292.6 kilograms (645 lb). He decided to retire from sumo in September 2018.