Čermák (feminine Čermáková) is a Czech surname. Notable people with the surname include:
Anton Cermak (1873–1933), mayor of Chicago, IllinoisFrantišek Čermák (born 1976), Czech tennis playerJaroslav Čermák (born 1929), member of the French ResistanceJaroslav Čermák (1831–1878), Czech painterJiřina Čermáková, Czech field hockey playerKarl Čermak, German Bohemian and Czechoslovak politicianLeokadia Makarska-Čermák, Polish painter and designerLeoš Čermák (born 1978), Czech ice hockey playerMiloslav Čermák, Czech ice hockey playerPavel Čermák (born 1989), Czech footballerPetr Čermák (born 1942), Czech rowerTomáš Čermák (born 1943), Czech engineer, rector of the Technical University of OstravaVladimír Čermák (1929–2004), Czech philosopher, politologist, lawyer and judge