Claes is a masculine given name, a version of Nicholas, as well as a patronymic surname. It is also spelled Klas, Clas and Klaes.
Claes is a common first name in Sweden. It was also a common name in the Low countries until the 18th century, after which the spelling Klaas was largely adopted. People with the given name Claes include:
Claes is the 7th most common surname in Belgium (16,840 people in 1998) and the most common surname in Belgian Limburg. [1] [2] In contrast, only 405 people have the surname in the Netherlands. [3] People with the last name Claes include: