Kolchak

Kolchak, Kolçak or Kolčák is a surname. Notable people with the surname include:


 * Iliash Kolchak ("Kolchak-Pasha") (fl. before 1710–1743), Moldavian mercenary and military commander
 * Alexander Kolchak (1874–1920), Russian naval commander, head of anti-Bolshevik White forces
 * Eşref Kolçak (1927–2019), Turkish actor
 * Kristián Kolčák (born 1990), Slovak football midfielder