Posthuma (surname)

Posthuma is a Dutch surname that may refer to:
 * Carst Posthuma (1868–1939), Dutch cricket player
 * Danielle Posthuma (born 1972), Dutch neuroscientist
 * Douwe Bob Posthuma (born 1992), Dutch singer-songwriter, known simply as Douwe Bob
 * Folkert Posthuma (1874–1943), Dutch politician
 * Jan Posthuma (born 1963), Dutch volleyball player
 * Joost Posthuma (born 1981), Dutch road bicycle racer