Groos

Groos may refer to:

People named:
 * Arthur Groos (born 1943), American philologist, musicologist, medievalist and Germanist
 * David Groos (1918–1976), Canadian politician
 * Friedrich Groos (1768–1852), German physician and philosopher
 * Gerard de Groos or Jan Adriaen Gerhardt de Groos (died 1730), Czech engraver of the Flemish origin
 * Kaare Steel Groos (1917–1994), Norwegian politician
 * Karl Groos (1861–1946), German psychologist
 * Margaret Groos (born 1959), American athlete
 * Richard Groos (died 1407), English politician
 * Wilhelm Gisbert Groos (1894–1997), German World War I flying ace