S. Robert Molinari (1897–1957) was an American politician from New York.
He was born in 1897 in Italy. He lived in New Dorp, Staten Island.
He was a member of the New York State Assembly (Richmond Co., 2nd D.) in 1943 and 1944, elected on the Republican ticket. In 1944, he ran for re-election on the Democratic ticket, but was defeated by Republican Edmund P. Radigan.
S. Robert Molinari died in 1957.
He was the father of U.S. Representative Guy Molinari (born 1928); and grandfather of U.S. Representative Susan Molinari (born 1958).