The name Kees means Horn and is of Dutch origin. Kees is a name that's been used primarily by parents who are considering baby names for boys.
Traditionally a male name, a diminutive (nickname) of the name Cornelis. Pronounced like "case."
Famous people with the name Kees include Kees van Dongen, Dutch-French painter; Kees van Baaren, composer and teacher; and Kees Vendrik, politician.