Kolk may refer to:

People Douglas Kolk (1963–2014), American artist Hanco Kolk (born 1957), Dutch cartoonist Lembit Kolk (1907–2003), Estonian politician Raimond Kolk (1924–1992), Estonian writer and critic Santi Kolk (born 1981), Dutch footballer Scott Kolk (1905–1993), American actor Oets Kolk Bouwsma (1898–1978), American philosopher

Other KOLK, a radio station licensed to Lakeside, Montana, United States Kolk (bog), a waterbody in the middle of a raised or kettle bog Kolk (vortex), a powerful underwater vortex Kolk, Zagorje ob Savi, a settlement in Upper Carniola, Slovenia Kolk (Heidmark), a village destroyed to make the Bergen-Hohne Training Area in Lower Saxony, Germany Kolk-Spandau, a subdivision of Spandau in Spandau Borough, Berlin, Germany

See also Van der Kolk, a surname (including a list of people with the name)