Ralph J. Lamberti (born November 14, 1934) is an American politician who is a member of the Democratic Party, and held the office of borough president of Staten Island, New York from 1984 to 1989.

In the ceremony he noted "My grandfather dug ditches and corked pipes for the water department ... Now, a century later, his grandson [has become] president of the borough he so cherished.

"[2] As Borough President, Lamberti created the "Harmony Street Fair," an annual celebration of the Island's growing ethnic diversity.

Lamberti also created the action center, where members of his staff were assigned to take complaints about the city government from the public, and he was the first to donate funds to Project Hospitality.

The proposed revisions would significantly reduce the power of borough presidents and resulted in Lamberti, among other elected officials, making secession from NYC a political issue on Staten Island.

[15] On March 22, 1989, the United States Supreme Court unanimously decided that the New York City Board of Estimate violates constitutional protections of one-man, one-vote – since Lamberti's vote, at that time represented about 400,000 Staten Islanders, and carried the same weight as Brooklyn Borough President Howard Golden's, representing 2.3 million.

Upon his departure from Borough Hall in 1990 Lamberti was appointed Executive Vice President of Staten Island University Hospital where he served for 15 years, retiring in 2005.