Svyatoslav Mykhaylovych Piskun (Ukrainian: Святослав Михайлович Піскун, born 1 March 1959) was 3 times Prosecutor General of Ukraine.

[2] He worked as a prosecutor in several important cases, including murder of Georgiy Gongadze and investigation of United Energy Systems of Ukraine.

[10] He was criticized for closing the criminal case related to the United Energy Systems of Ukraine while serving under Viktor Yushchenko's government in 2005.

[14] On 30 March 2014 during an interview with Inter TV channel he called for the criminal prosecution of Ukrainian officials who are responsible for allowing the 2014 Russian annexation of Crimea.

[15][16] On 30 July 2020 Prosecutor General Iryna Venediktova appointed Piskun as her personal adviser on a voluntary basis.