Seaside Park may refer to a number of places:

Municipalities

Seaside Park, British Columbia Seaside Park, aka Seaside, was a cannery town on the South Coast of British Columbia, Canada, located near Langdale and Port Mellon on the west, mainland side of Thornbrough Channel, a side-channel of Howe Sound separating Gambier Island from th ...

Seaside Park, New Jersey Seaside Park is a borough in Ocean County, in the U.S. state of New Jersey. It is part of the New Brunswick– Lakewood, NJ Metropolitan Division, which is part of the New York metropolitan area. As of the 2020 United States census, the borough ...

Parks

Seaside Park (Connecticut) Seaside Park, located in Bridgeport, Connecticut, is a long crescent-shaped park bordering Bridgeport Harbor, Long Island Sound, and Black Rock Harbor. The park lies within Bridgeport's South End neighborhood. History As Bridgeport rapidly ...

, Bridgeport, Connecticut, listed on the National Register of Historic Places (NRHP) in Fairfield County, Connecticut *

Seaside Park (Marblehead, Massachusetts) Seaside Park is a coastal park located in Marblehead, Massachusetts. At a little over , it is the largest of Marblehead's four public parks, and includes an early 20th century grandstand overlooking the baseball field. At its eastern edge, it pr ...

, listed on the NRHP in Essex County, Massachusetts * Seaside Park (Ventura) in Ventura, California {{disambiguation, geo