Ivan Sirko
| Ivan Dmytrovych Sirko | |
|---|---|
| An imaginary representation of Sirko by Ilya Repin | |
| Nickname(s) | Otaman Sirko Rus' Devil (Urus Shaitan) Kharakternyk | 
| Born | 1605 Merefa, Sloboda Ukraine or Murafa, Bracław Voivodeship (disputed) | 
| Died | August 11, 1680 (aged 74–75) Hrushivka, Zaporizhian Host | 
| Allegiance | |
| Years of service | 1620–1680 | 
| Rank | Kosh Otaman Hetman (Honorary) | 
| Battles / wars | See list 
 | 
| Spouse(s) | Sofia | 
| Children | 4 | 
Ivan Dmytrovych Sirko (c. 1605 – August 11, 1680) was a Zaporozhian Cossack military leader, Koshovyi Otaman of the Zaporozhian Host and putative co-author of the famous semi-legendary Cossack letter to the Ottoman sultan that inspired the major painting Reply of the Zaporozhian Cossacks by the 19th-century artist Ilya Repin.