Namesakes
Eelco van Kleffens
(middle name Nicolaas) (m) 1894-1983 
Notable Politicians and Statespeople
Henk Bouwman
(middle name Nicolaas) (m) 1926-1995
Olympic Medalists 1948 field hockey (bronze)
Jeroen van Koningsbrugge
(middle name Nicolaas) (m) 1973-
Notable Actors and Entertainers (actor)
Johannes Heesters
(middle name Nicolaas) (m) 1903-2011
Notable Actors and Entertainers (actor)
Notable Musicians
Matthijs van de Sande Bakhuyzen
(middle name Nicolaas) (m) 1988-
Notable Actors and Entertainers (actor)
Nico Landeweerd
(m) 1954-
Olympic Medalists 1976 water polo (bronze)
Nicolaas Bloembergen
(m) 1920-2017
Nobel Prize Winners 1981 (physics)
Notable Scientists and Inventors
Nicolaas Pieck
(m) 1534-1572
Saints
Nicolaas Pierson
(m) 1839-1909
Dutch Prime Ministers 1897-1901
Nicolaas Poppel
(m) ?-1572
Saints
Nieky Holzken
(m) 1983-
Notable Athletes (boxing)
Willem, Prince of Orange
(middle name Nicolaas) (m) 1840-1879
Other Royalty 1849-1879 Netherlands (prince)