Kudryavtsev or Kudriavtsev (masculine) or Kudryavtseva (feminine) is a common surname and was a noble family in Russia. It is the last name of the following people:

Male Alexander Kudryavtsev, a world champion Greco-Roman wrestler in the 1980s Alexander Kudryavtsev (b. 1985), professional tennis player Anatoliy Kudryavtsev (b. 1946), Russian type designer, Prof., Doctor of Arts Kirill Kudryavtsev (b. 2004), Russian professional ice hockey player Konstantin Borisovich Kudryavtsev (b. 1980), Russian FSB agent allegedly involved in the poisoning of Alexei Navalny, missing since 2020 Lev Kudryavtsev, mathematician Nikolai Kudryavtsev, petroleum geologist Nikolay Kudryavtsev, rector of the Moscow Institute of Physics and Technology Nikolay Kudryavtsev (singer), singer for the band Zemlyane Viktor Kudriavtsev, figure skating coach and choreographer Viktor Kudryavtsev (guitarist), guitarist for the band Zemlyane Mikhail Konstantinovich Kudryavtsev, ethnographer, ethnologist, and indologist from the USSR

Female Alla Kudryavtseva, professional tennis player (daughter of Alexander Kudryavtsev) Yana Kudryavtseva, rhythmic gymnast