Gemayel was married to Genevieve Gemayel, and they celebrated the 50th anniversary of their marriage in August 1984. They had six children. His younger son, Bachir Gemayel was assassinated on 14 September 1982 after being elected to the presidency. His grandson Pierre Amine Gemayel, then industry minister, was similarly assassinated on 21 November 2006. Several other descendants of Pierre Gemayel, including two grandchildren, were also murdered during the civil war period.