Ray Greene (February 2, 1765 - January 11, 1849) was a United States Senator from Rhode Island. Born in Warwick, he pursued classical studies and graduated from Yale College in 1784; he studied law, was admitted to the bar, and commenced practice in Providence. He was attorney general of Rhode Island from 1794 to 1797, and in the latter year was elected as a Federalist to the U.S. Senate to fill the vacancy caused by the resignation of William Bradford. Greene was reelected in 1799 and served from November 13, 1797, to March 5, 1801, when he resigned, having been nominated for a judicial position. He was designated a district judge of Rhode Island by President John Adams, but, through a technicality, was not appointed.
Greene died in Warwick, 1849; interment was in the family burying ground on his estate at Warwick.