Ernst David Hellinger (September 30, 1883 – March 28, 1950) was a German mathematician and is primarily known for his works on statistics and probability.

After graduating from the Gymnasium, Ernst Hellinger entered the University of Heidelberg, but didn't completed his studies there.

However, his friends were able to arrange a temporary job for Hellinger at Northwestern University at Evanston, Illinois, in the United States.

Hellinger distance has been used to process natural language and learning word embeddings.

[1] In addition, the Hilbert–Hellinger theory of forms in infinitely many variables profoundly influenced mathematical analysis.