The seaboard goby (Gobiosoma ginsburgi) is a species of fish belonging to the family Gobiidae.

It can be colored from a pale, translucent shade to a darker brown.

The seaboard goby occurs on the Atlantic Coast of the United States, ranging north from Massachusetts to Georgia, being recorded most frequently from New Jersey to the southern end of its range.

Spawning for the seaboard goby occurs during the summer season beginning at age 1 in the southern portions of its range, and progressively continues northward as the season goes on.

The specific name honors the American ichthyologist and taxonomist of gobies, Isaac Ginsburg (1886–1975), who was a colleague of Hildebrand and Schroeder at the U.S. National Museum.