Robert Frank Agostinelli (born May 21, 1953) is an American billionaire[1] financier who is the chairman and co-founder of private equity firm Rhône Group.

[10] Agostinelli began his career in financial services at the investment bank Jacob Rothschild in Switzerland from 1981 to 1982 and subsequently joined Goldman Sachs becoming a senior partner where he worked for five years and founded the firm's international mergers and acquisitions business in London and then moved to Lazard Freres as Senior Managing Director in charge of international banking affairs where he was involved in a number of the largest transactions in European takeover history.

[15] He is former vice-chairman of the Council for the United States and Italy (CONSIUSA), a member of the Investment Committee of Corporate World Opportunities of BSI Group.

[23][24] He has been quoted "pursue happiness and the American dream and not “fall prey to the tyranny of false deities” such as critical race theory, the “Marxist Black Lives Matter organization,” feminism and “gender confusion.” [25] A delegation of the Friends of Israel Initiative, which included Agostinelli, met with President Shimon Peres at Beit HaNassi in Jerusalem in July 2011.

The delegation included former Spanish Prime Minister José Aznar, former US Ambassador to the United Nations John R. Bolton, and Nobel Peace Prize laureate Lord David Trimble.

"[28] Agostinelli is based between New York City and Palm Beach, and he maintains additional homes in London and Paris, all of which have interiors designed by Jacques Grange.