Petr Čermák (born 24 December 1942) is a Czech rower who competed for Czechoslovakia in the 1964 Summer Olympics and in the 1968 Summer Olympics.
He was born in Prague.
In 1964 he was a crew member of the Czechoslovak boat which won the bronze medal in the eights event.
Four years later he finished fifth with the Czechoslovak boat in the eight competition.