Ocean City is an Atlantic resort city located in Worcester County, Maryland, along the East Coast of the United States. Officially designated as the Town of Ocean City, it sits on Fenwick Island, a barrier spit that encompasses parts of both Maryland and Delaware. The municipality occupies a strategic position on the Delmarva Peninsula, bordered by the Atlantic Ocean to the east and Sinepuxent Bay to the west. It functions as a distinct local government entity within the Salisbury metropolitan area as defined by the United States Census Bureau.

The area was originally inhabited by Indigenous peoples, including the Assateague and Nanticoke, before Thomas Fenwick acquired the land from them. In 1869, Isaac Coffin built the first beach-front cottage to receive paying guests, marking the beginning of its development as a resort. Before 1870, the location was known as "The Ladies' Resort to the Ocean." The Atlantic Hotel opened in 1875, followed by rail connections that brought tourists directly to the town. A significant hurricane in 1933 formed the Ocean City Inlet, permanently separating the city from Assateague Island and establishing it as a fishing port.

The city spans approximately ten miles along the coast, featuring a mix of downtown districts with older homes and motels alongside northern areas with high-rise condominiums and hotels. Key landmarks include the Ocean City Boardwalk, the Roland E. Powell Convention Center, and the Ocean City Firefighter's Memorial, which incorporates steel from the World Trade Center. The geography is defined by its barrier island status, with the southern point marked by the inlet created in 1933. Urban expansion has continued westward across the bay toward Berlin and Ocean Pines.

Ocean City attracts millions of visitors annually through numerous events such as Sunfest, Springfest, Bike Week, and the Oceans Calling Festival. The town serves as a popular destination for Senior Week in June, drawing high school graduates from across the region. Visitors are drawn to its clean beaches, amusement parks, restaurants, and bay sunsets. The city also hosts the annual Maryland State Firefighters Convention in June. During peak seasons, the influx of tourists transforms the quiet resort into a bustling hub of activity centered around the boardwalk and convention facilities.

The town had a population of 6,844 as of the 2020 U.S. census, though summer weekends see between 320,000 and 345,000 vacationers. It is accessible via U.S. Route 50, Maryland Route 90, and Delaware Route 1. The climate is humid subtropical with hot, humid summers and cool winters, receiving 2,300 hours of sunshine annually. The best time to visit is between Memorial Day and Labor Day weekends, although the city remains active year-round with various seasonal events and conventions drawing consistent crowds.