Martin Mejstřík (born 30 May 1962) is a Czech politician and human rights activist.
Mejstřík is notable for his role as a student leader during the Velvet Revolution that led to the ousting of the Communist regime in Czechoslovakia in November 1989.
Mejstřík is a founding signatory of the Prague Declaration on European Conscience and Communism (and the co-organizer, with Jana Hybášková, of its preceding conference)[2] and the Declaration on Crimes of Communism.
He was also one of the politicians proposing the creation of the Institute for the Study of Totalitarian Regimes.
In 2007, he proposed a ban on "communist and all totalitarian propaganda and symbols".