Nelson Gerard Gross (January 9, 1932 – September 17, 1997) was an American Republican Party politician who served in the New Jersey General Assembly and as Chairman of the New Jersey Republican State Committee. His political career ended in 1974 when he was convicted on federal charges involving the 1969 campaign of Governor William T. Cahill. After his prison term he went on to a lucrative business career as a real estate developer and restaurateur, before being kidnapped and murdered in September 1997.