Smeshko (born 17 August 1955) served as the head of the Security Service of Ukraine (SBU) from 2003 to 2005, where he supported the opposition during the Orange Revolution.
In 2010, he entered politics with the Ukrainian Strength and Honor (SICH) party, which he formed with several former security and intelligence officials.Smeshko was registered as a candidate in the 2019 Ukrainian presidential election.
In the election he took 6th place with 6.04% of the vote.