Leonid Igorevich Markelov (Russian: ?????´? ?´??????? ?????´???) (Meadow Mari: ???????? ?????? ????????) (born 1963) is a Russian politician and lawyer, who is the former head of the Mari El republic in Russia.
He took office on January 14, 2001 and resigned from office on April 6, 2017.
Markelov was later arrested under suspicion of accepting bribes.