Westergaard is a Danish surname, literally meaning west farm. Note that the double a is equivalent of å in common nouns and is retained from the pre-1948 orthography in proper nouns only. The form Vestergaard is a more common cognate. Notable people with the surname Westergaard include:
Bjørn Westergaard (born 1962), Danish Olympic sailor Elof Westergaard (born 1962), Danish Lutheran bishop Harald Ludvig Westergaard (1853–1936), Danish statistician and economist Harold M. Westergaard (1888–1950), Danish professor of theoretical and applied mechanics John Westergaard (1931–2003), American stock analyst Kurt Westergaard (1935–2021), Danish cartoonist Marit Westergaard (born 1956), Norwegian linguist and language acquisitionist Mogens Westergaard (1912–1975), Danish geneticist and cytogeneticist Niels Ludvig Westergaard (1815–1878), Danish orientalist Peter Westergaard (1931–2019), American composer and music theorist
See also Vestergaard