- Source: Ryazantsev
- Daftar Pahlawan Uni Soviet (R)
- FC Znamya Truda Orekhovo-Zuyevo
- Babak grup Liga Champions UEFA 2009–2010
- Babak grup Liga Eropa UEFA 2012–2013
- Ryazantsev
- Aleksandr Ryazantsev
- Vladislav Ryazantsev
- Yevheniy Ryazantsev
- Maksim Ryazantsev
- Yakov Rezantsev
- Russian submarine Kursk (K-141)
- Alexander Riazantsev (ice hockey)
- Vault (organelle)
- World War Z (2019 video game)
Ryazantsev or Riazantsev (Russian: Рязанцев) is a Russian masculine surname, its feminine counterpart is Ryazantseva or Riazantseva. It may refer to
Aleksandr Ryazantsev (born 1986), Russian footballer
Alexander Riazantsev (ice hockey) (born 1980), Russian ice hockey player
Alexander Riazantsev (chess player) (born 1985), Russian chess grandmaster
Maksim Ryazantsev (born 1977), Russian football player
Vladislav Ryazantsev (born 1986), Russian politician