Kazantsev (; masculine) or Kazantseva (; feminine) is a Russian surname. It is shared by the following people: Alexander Kazantsev, Soviet sci-fi writer Artyom Kazantsev (1988—2022), perpetrator of the Izhevsk school shooting Kira Kazantsev (born 1991), American beauty pageant titleholder who won Miss America 2015
Viktor Kazantsev, Hero of the Russian Federation Vladimir Kazantsev (athlete) Vladimir Kazantsev (canoeist)