Friedrich Pfeiffer
Friedrich Pfeiffer is the name of the following people:
- Friedrich Pfeiffer (lawyer) (1815–1879), German lawyer and politician
- Friedrich Wilhelm Pfeiffer (1867–1959), German veterinary surgeon and university professor, see Wilhelm Pfeiffer (veterinary surgeon )
- Friedrich Pfeiffer (mathematician) (1883–1961), German mathematician and university professor
- Friedrich Pfeiffer (engineer) (* 1935), German engineer and university professor
- Friedrich Wilhelm Pfeiffer (1822-1891), German painter
