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