Dreier is a family name of German origin.
People with the last name Dreier include:
David Dreier, member of the United States House of Representatives Hannah Dreier, American journalist Hans Dreier, art film director James Dreier, American philosopher John Caspar Dreier, United States diplomat and academic Katherine Dreier, painter and art collector Marc Stuart Dreier, American lawyer convicted of fraud Sarah Dreier, Austrian ski mountaineer Thomas Dreier, American author and businessman
See also Dreyer (disambiguation)