Sergey Ivanov
Sergei Ivanov, former Head of Kremlin Chief of Staff
Sergey Ivanov may also refer to:
- Sergey Ivanov (Russian historian), Russian historian and byzantinist
- Sergey Ivanov (American football), American footballer
- Sergey Ivanov (painter), Russian painter
- Sergei Ivanov (cyclist), Russian professional bicycle racer
- Sergei Ivanov (footballer, born 1964), Russian football player and referee
- Sergei Ivanov (footballer, born 1980), Kyrgyzstan footballer with FC Irtysh
- Sergey Ivanov (footballer, born 1984), Russian footballer formerly with FC Zenit St. Petersburg and FC Alania Vladikavkaz
- Sergei Ivanov (footballer, born 1997), Russian footballer
- Sergey Ivanov (referee), Russian international football referee
- Sergey Ivanov (runner), Russian runner
- Sergey Ivanov (politician, born 1969), Russian politician, a deputy of the 4th, 5th, 6th and 7th State Duma
- Sergey Ivanov (Saint Petersburg politician), Russian politician
- Sergei Ivanov (Estonian politician), Estonian politician
- Sergei Ivanov (mathematician), Russian mathematician
- Sergey Ivanov (chess player), Russian chess grandmaster