Svyatoslav Mykhaylovych Piskun (Ukrainian: Святослав Михайлович Піскун, born March 8, 1959) was the 3 times Prosecutor General of Ukraine in 2002-2003, 2005 and 2007 till President Viktor Yushchenko's dismissed Piskun on May 24, 2007. He worked as a prosecutor in several important cases, including murder of Georgiy Gongadze and investigation of United Energy Systems of Ukraine.