Andrei Vladimirovich Semenov (, also sometimes transliterated as Andrei Semyonov; born June 17, 1977) is a Russian mixed martial artist and Sambo practitioner. He has also made forays into acting.
Semenov has fought within the UFC middleweight division, in M-1 events and Pride Bushido, with an overall MMA record of 34 wins, 9 losses and 2 draws. He has been fighting in Mixed Martial Arts since 1998, and is famed for excellent throws, strong submission defense, superior stamina and being very resilient and hard to finish.
Three years after retiring in 2008, Semenov returned to MMA and fought Luigi Fioravanti at on April 28, 2011. Though a considerable underdog on media scoring websites, Semenov won the fight via unanimous decision. After another hiatus, Semenov returned on December 8, 2012, facing Michele Verginelli at M-1 Challenge: 36. He won via unanimous decision.
Semenov fought on October 20, 2013, defeating Gregor Herb at M-1 Challenge 42. He was then scheduled to face Ramazan Emeev at M-1 Challenge 47 on April 4, 2014, however in the weeks leading up to the event, the bout was cancelled for unknown reasons.
With a 20-2 record, Semenov made his UFC debut on January 11, 2002, against notable BJJ black-belt Ricardo Almeida at UFC 35. Semenov won via TKO (punches).
He returned four months later on May 10, 2002, facing Ivan Salaverry at UFC 37. Semenov lost via TKO, and following the fight, Semenov left the UFC and returned to the M-1 Global promotion.
|- | Win | align=center| | Gregor Herb | Decision (unanimous) | M-1 Challenge: 42 | | align=center| 3 | align=center| 5:00 | St. Petersburg, Russia | |- | Win | align=center| 33âÂÂ9âÂÂ2 | Michele Verginelli | Decision (unanimous) | M-1 Challenge: 36 | | align=center| 3 | align=center| 5:00 | Mytishchi, Russia | |- | Win | align=center| 32âÂÂ9âÂÂ2 | Luigi Fioravanti | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Saint Petersburg, Russia | |- | Win | align=center| 31âÂÂ9âÂÂ2 | Gregory Babene | Decision (split) | IAFC: Russia vs. the World | | align=center| 3 | align=center| 5:00 | Novosibirsk, Russia | |- | Win | align=center| 30âÂÂ9âÂÂ2 | Lubomir Guedjev | TKO (strikes) | fightFORCE: Russia vs. The World | | align=center| 2 | align=center| 2:06 | St. Petersburg, Russia | |- | Win | align=center| 29âÂÂ9âÂÂ2 | Emyr Bussade | Decision (unanimous) | BodogFIGHT - USA vs. Russia | | align=center| 3 | align=center| 5:00 | Moscow, Russia | |- | Loss | align=center| 28âÂÂ9âÂÂ2 | Jorge Santiago | TKO (strikes) | Bodog Fight - Clash of the Nations | | align=center| 2 | align=center| 4:48 | St. Petersburg, Russia | |- | Win | align=center| 28âÂÂ8âÂÂ2 | Matt Ewin | TKO (strikes) | Bodog Fight - Costa Rica | | align=center| 1 | align=center| 0:43 | Costa Rica | |- | Loss | align=center| 27âÂÂ8âÂÂ2 | Trevor Prangley | Decision (unanimous) | Bodog Fight - USA vs Russia | | align=center| 3 | align=center| 5:00 | Vancouver, British Columbia, Canada | |- | Loss | align=center| 27âÂÂ7âÂÂ2 | Gregory Bouchelaghem | Decision | | | align=center| 3 | align=center| 5:00 | St. Petersburg, Russia | |- | Loss | align=center| 27âÂÂ6âÂÂ2 | Denis Kang | Decision (unanimous) | Pride: Bushido 8 | | align=center| 2 | align=center| 5:00 | Nagoya, Japan | |- | Win | align=center| 27âÂÂ5âÂÂ2 | Matt Ewin | Decision | | | align=center| 3 | align=center| 5:00 | Moscow, Russia | |- | Win | align=center| 26âÂÂ5âÂÂ2 | Flavio Luiz Moura | Decision | | | align=center| 3 | align=center| 5:00 | St. Petersburg, Russia | |- | Win | align=center| 25âÂÂ5âÂÂ2 | Azred Telkusheev | Submission (rear-naked choke) | | | align=center| 1 | align=center| 1:25 | St. Petersburg, Russia | |- | Win | align=center| 24âÂÂ5âÂÂ2 | Martin Kampmann | TKO (doctor stoppage) | | | align=center| 1 | align=center| 1:21 | St. Petersburg, Russia | |- | Loss | align=center| 23âÂÂ5âÂÂ2 | Trevor Prangley | Decision (unanimous) | Euphoria - Russia vs USA | | align=center| 3 | align=center| 5:00 | Atlantic City, New Jersey, United States | |- | Draw | align=center| 23âÂÂ4âÂÂ2 | Denis Kang | Draw | M-1 MFC - Russia vs. The World 7 | | align=center| 1 | align=center| 10:00 | St. Petersburg, Russia | |- | Win | align=center| 23âÂÂ4âÂÂ1 | Chris Albandia | TKO (cut) | M-1 MFC - Russia vs. the World 6 | | align=center| 1 | align=center| 0:50 | Moscow, Russia | |- | Draw | align=center| 22âÂÂ4âÂÂ1 | Mike Pyle | Draw | M-1 MFC - Russia vs. the World 5 | | align=center| 1 | align=center| 10:00 | St. Petersburg, Russia | |- | Win | align=center| 22âÂÂ4 | Curtis Stout | Submission (rear naked choke) | | | align=center| 1 | align=center| 2:57 | St. Petersburg, Russia | |- | Loss | align=center| 21âÂÂ4 | Murad Chunkaiev | Decision | 2H2H 5 - Simply the Best 5 | | align=center| 2 | align=center| 3:00 | Rotterdam, Netherlands | |- | Loss | align=center| 21âÂÂ3 | Ivan Salaverry | TKO (punches) | UFC 37 | | align=center| 3 | align=center| 2:27 | Bossier City, Louisiana, United States | |- | Win | align=center| 21âÂÂ2 | Ricardo Almeida | TKO (punches) | UFC 35 | | align=center| 2 | align=center| 2:01 | Uncasville, Connecticut, United States | |- | Win | align=center| 20âÂÂ2 | Renato Vieira | TKO (punches) | M-1 MFC - Russia vs. the World 2 | | align=center| 1 | align=center| 1:01 | St. Petersburg, Russia | |- | Win | align=center| 19âÂÂ2 | Dave Dalgliesh | Submission (armbar) | 2H2H 3 - Hotter Than Hot | | align=center| 1 | align=center| 2:32 | Rotterdam, Netherlands | |- | Win | align=center| 18âÂÂ2 | Tulio Palhares | Submission (armbar) | M-1 MFC - Russia vs. the World 1 | | align=center| 2 | align=center| 2:16 | St. Petersburg, Russia | |- | Win | align=center| 17âÂÂ2 | Martijn de Jong | TKO (strikes) | MillenniumSports: Veni Vidi Vici | | align=center| N/A | align=center| N/A | Veenendaal, Netherlands | |- | Win | align=center| 16âÂÂ2 | Alexei Vezelozorov | Submission (armbar) | | | align=center| N/A | align=center| N/A | St. Petersburg, Russia | |- | Win | align=center| 15âÂÂ2 | Nikolai Onikienko | Submission (armbar) | | | align=center| N/A | align=center| N/A | St. Petersburg, Russia | |- | Win | align=center| 14âÂÂ2 | Adnan Durmus | TKO (strikes) | | | align=center| N/A | align=center| N/A | St. Petersburg, Russia | |- | Win | align=center| 13âÂÂ2 | Nikolai Onikienko | Submission (armlock) | | | align=center| 1 | align=center| N/A | Sochi, Russia | |- | Win | align=center| 12âÂÂ2 | Martijn de Jong | Submission (guillotine choke) | BOA 2 - Battle of Arnhem 2 | | align=center| N/A | align=center| N/A | Arnhem, Netherlands | |- | Loss | align=center| 11âÂÂ2 | Amar Suloev | Submission (rear naked choke) | WVC 11 - World Vale Tudo Championship 11 | | align=center| 1 | align=center| 1:47 | Recife, Brazil | |- | Win | align=center| 11âÂÂ1 | Phil Ensminger | TKO (strikes) | WVC 11 - World Vale Tudo Championship 11 | | align=center| 1 | align=center| 8:51 | Recife, Brazil | |- | Win | align=center| 10âÂÂ1 | Fabricio Madeirada | TKO (strikes) | WVC 11 - World Vale Tudo Championship 11 | | align=center| 1 | align=center| 3:48 | Recife, Brazil | |- | Loss | align=center| 9âÂÂ1 | Andrei Rudakov | Decision | IAFC - Pankration World Championship 2000 Day 2 | | align=center| 1 | align=center| N/A | Moscow, Russia | |- | Win | align=center| 9âÂÂ0 | Daur Dyakaev | Submission (rear-naked choke) | IAFC - Pankration World Championship 2000 Day 1 | | align=center| 1 | align=center| 0:57 | Moscow, Russia | |- | Win | align=center| 8âÂÂ0 | Ilya Kudryashov | Submission (armbar) | | | align=center| 1 | align=center| 4:18 | St. Petersburg, Russia | |- | Win | align=center| 7âÂÂ0 | Rafles la Rose | Submission (armbar) | | | align=center| 1 | align=center| 5:12 | St. Petersburg, Russia | |- | Win | align=center| 6âÂÂ0 | Göksel Sahinbas | TKO (punches) | 2H2H 1 - 2 Hot 2 Handle | | align=center| 1 | align=center| 3:28 | Rotterdam, Netherlands | |- | Win | align=center| 5âÂÂ0 | Sergei Zavadsky | Submission (armbar) | | | align=center| 1 | align=center| 0:57 | St. Petersburg, Russia | |- | Win | align=center| 4âÂÂ0 | Sergei Gur | Submission (armbar) | | | align=center| 1 | align=center| 1:17 | St. Petersburg, Russia | |- | Win | align=center| 3âÂÂ0 | Darrel Gholar | Decision | | | align=center| 3 | align=center| 10:00 | St. Petersburg, Russia | |- | Win | align=center| 2âÂÂ0 | Amar Suloev | Submission (armbar) | | | align=center| 1 | align=center| 6:08 | St. Petersburg, Russia | |- | Win | align=center| 1âÂÂ0 | Ruslan Yacoupov | Submission (armbar) | | | align=center| 2 | align=center| 1:48 | St. Petersburg, Russia |
Among the films in which he has acted is the 2004 Russian film Dark Night (âõüýðàýþÃÂÃÂ).