Fedor Emelianenko (IPA: [fiodor jemiljaˈnjenkʌ], Russian: Фёдор Емельяненко. September 28, 1976) is a Russian heavyweight mixed martial arts fighter and the current Heavyweight Champion in the PRIDE Fighting Championships based in Japan. He was the 1998 bronze medalist in Russian Judo championship; the 2002 World Sambo heavyweight division champion, the 2005 World Combat Sambo champion; Rings: King of Kings 2001 heavyweight tournament champion; Rings: King of Kings 2002 absolute weight class tournament champion and PRIDE FC 2004 Heavyweight Grand Prix tournament champion. He has been the reigning heavyweight champion in PRIDE since March 16, 2003, and has a professional MMA record of 24-1-0. He is believed by many to be the greatest MMA fighter of all time.

Fedor Emelianenko was born in 1976 in the Rubezhnoe town in Luhansk region, presently a part of Ukraine (part of the Soviet Union at the time). Fedor's family moved to Stary Oskol, Russia in 1978. His mother, Olga Feodorovna, is a teacher. His father, Vladimir Alexandrovich, is a gas-electric welder. Fedor is the second child in the family and has an older sister, Marina, and two younger brothers, Aleksander (born 1981) and Ivan (born 1988). Aleksander is also an MMA fighter in PRIDE, and Ivan is currently in training.

Fedor finished high school in 1991 and graduated with honors from a professional trade school in 1994. In 1999 he married his wife, Oksana. Fedor's daughter, Masha, was also born in 1999. In his spare time, Fedor has stated he likes the sun and going to the beach, he has also stated he likes drawing, and has posted some paintings on his official website. He's also said he has got a pet turtle and likes cats and dogs but also stated he lacks time for pets and that he prefers spending that time with his daughter instead.