Pfeiffer may refer to:
Medicine Pfeiffer syndrome, a rare genetic disorder characterized by the premature fusion of certain bones of the skull Infectious mononucleosis, also known as the kissing disease, or Pfeiffer's disease
Organizations Pfeiffer University, Misenheimer, North Carolina, U.S. Carl A. Pfeiffer, a German piano manufacturer Pfeiffer Vacuum, a German manufacturer of vacuum pumps
Places Pfeiffer, Arkansas, U.S. Pfeiffer, Ohio, U.S. Pfeiffer Lake, Minnesota, U.S. Pfeiffer Big Sur State Park Julia Pfeiffer Burns State Park
Other Pfeiffer (surname) Pfeiffer effect, an optical phenomenon
See also Pfeiffer House (disambiguation) Pfeifer, a surname Pfeffer, a surname