Carl Pfeiffer may refer to:
- Carl Pfeiffer (pharmacologist) (1908–1988), one of the founders of orthomolecular psychiatry
- Carl Pfeiffer (architect) (1834–1888), German-born NYC architect
Famous quotes containing the word carl:
“The millere was a stout carl for the nones;”
—Geoffrey Chaucer (1340?–1400)