D'Amato married his first wife, Penelope, with whom he has four children, in 1960. Al and Penelope D'Amato separated in 1982 after 22 years of marriage. After a 13-year separation, their divorce became final in 1995. On July 18, 2004, he married Katuria Elizabeth Smith, 29 years his junior. They have one son, Alfonso Marcello D'Amato, born in 2008, and a daughter, Luciana Cioffari D'Amato, born in 2009. Katuria D'Amato filed for divorce on 3 October 2017. It was also reported that both of them had earlier in the year been "kicked off separate flights just nine days apart, allegedly for arguing with the crew".