Ketelaar

Ketelaar or Ketelaars is a Dutch surname. Notable people with the surname include:


 * Digna Ketelaar (born 1967), Dutch tennis player
 * Hanneke Ketelaars (born 1974), Dutch tennis player
 * James Edward Ketelaar (born 1957), American scholar and historian
 * Jan Ketelaar (1908–2001), Dutch chemist and author
 * Leo Ketelaars (1913–1992), Dutch violinist, operatic baritone, opera manager and academic voice teacher
 * Sander van Doorn (real name Sander Ketelaars; born 1979), Dutch DJ and record producer