Anton "Bert" Hellinger (16 December 1925 – 19 September 2019) was a German psychotherapist. He worked with a therapeutic method best known as Family Constellations and Systemic Constellations. He was born in Leimen, Baden, Germany. In 1973, he left Germany for a second time and traveled to the United States to be trained for 9 months by Arthur Janov.