Beukelaer or Beuckelaer is a Flemish surname, while De Beukelaer is an independent Belgian surname. Notable people with these names include:
Edouard de Beukelaer, founder of the biscuit company DeBeukelaer Huybrecht Beuckelaer, Flemish Renaissance painter Joachim Beuckelaer, Flemish Renaissance painter Keith Beukelaer, American Idol contestant
De Beukelaer Emile De Beukelaer, Belgian road racing cyclist Roger De Beukelaer, Belgian cyclist Xavier De Beukelaer, Belgian fencer, also known as Balthasar De Beuckelaer
See also François Beukelaers (1938–2026), Belgian actor, stage director and singer Jos De Beukelaere (1925–1969), Belgian cyclist