Clas (given name)

Clas is a masculine given name. Notable people with the name include:


 * Clas Alströmer (1736–1794), Swedish naturalist
 * Clas Bjerkander (1735–1795), Swedish meteorologist, botanist and entomologist
 * Clas or Klaus Fleming (1535–1597), Finnish-born Swedish nobleman and admiral, Lord High Admiral and Lord High Constable
 * Clas Larsson Fleming (1592–1644), an admiral and administrator of the Royal Swedish Navy
 * Clas Frietzcky (1727–1803), Swedish politician
 * Clas Lindberg (born 1956), Swedish film director and screenwriter
 * Clas Theodor Odhner (1836–1904), Swedish historian and director of the Swedish National Archives
 * Clas Thunberg (1893–1973), Finnish speed skater and five time Olympic gold medalist
 * Clas Åkesson Tott (c. 1530 – 1590), Swedish field marshal and member of the Privy Council of Sweden