Hellinger is a surname. Notable people with the surname include:

• Bert Hellinger (1925–2019), German psychotherapist
• Ernst Hellinger (1883–1950), German mathematician
  • Hellinger distance, used to quantify the similarity between two probability distributions
  • Hellinger integral, used to define the Hellinger distance in probability theory
• Mark Hellinger (1903–1947), American journalist, theatre columnist and film producer
  • Mark Hellinger Theatre, former Broadway theatre and cinema complex
• Martin Hellinger (1904–1988), German Nazi dentist