Ilgenfritz
Ilgenfritz is the family name of the following people:
- Heidi Ilgenfritz (* 1968), German musician
- Heinrich Ilgenfritz (1899–1969), German engraver, lithographer and etcher
- James Ilgenfritz (* 1978), American jazz and improvisation musician
- Wolfgang Ilgenfritz (1957-2013), Austrian politician (FPÖ)
