Hermsen

Hermsen is a Dutch patronymic surname meaning "son of Herm" (a short form of Herman). Notable people with the surname include:


 * André Hermsen (born 1942), Dutch water polo player, brother of Henk and Wim
 * Henk Hermsen (1937–2022), Dutch water polo player, brother of André and Wim
 * (born 1982), Dutch hardcore techno musician known as "Tha Playah"
 * Kleggie Hermsen (1923–1994), American basketball player
 * Toine Hermsen (born 1954), Dutch chef and restaurant owner
 * Wim Hermsen (born 1947), Dutch water polo player and astronomer, brother of André and Henk