Péter Zwack, Hungarian businessman and diplomat (died 2012)

Péter János Zwack was a Hungarian businessman, investor, philanthropist, diplomat and the Hungarian Ambassador to the United States from 1990 until 1991. He was the CEO and owner of the company Zwack.

May 21 is the 141st day of the year in the Gregorian calendar; 224 days remain until the end of the year.