Sea Bright was formed as a borough by an act of the New Jersey Legislature on March 21, 1889, from portions of Ocean Township, based on the results of a referendum held the previous day. The borough was reincorporated on March 10, 1897. Additional portions of Ocean Township were annexed by the borough in March 1909. While some attribute the name to a suggestion made by Martha Bayard Stevens, other sources say that the borough was named for Sea Bright, England, though there is no evidence such a place exists. Earlier sources often spell it as one word, "Seabright", as seen in the United States Coast Guard's Station Seabright and the Seabright Lawn Tennis and Cricket Club.
Source: Snyder, John P. The Story of New Jersey's Civil Boundaries: 1606-1968, Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 185.