Lukáš Klok (born June 7, 1995) is a Czech professional ice hockey defenceman currently playing for HC Slovan Bratislava of the Kontinental Hockey League (KHL).
He made his professional debut with HC Vítkovice Ridera of the Czech Extraliga.
Following his fourth season with Vítkovice in 2017–18, Klok opted to sign a one-year deal with Slovak club, HC Slovan Bratislava, of the KHL on June 22, 2018.