Bay Ridge is a residential neighborhood in the southwest corner of the New York City borough of Brooklyn. It is bounded by Sunset Park on the north, Dyker Heights on the east, the Narrows and the Belt Parkway on the west, and Fort Hamilton Army Base and the Verrazzano-Narrows Bridge on the south. The section of Bay Ridge south of 86th Street is sometimes considered part of a sub-neighborhood called Fort Hamilton.

Bay Ridge was formerly the westernmost portion of the town of New Utrecht, comprising two smaller villages: Yellow Hook to the north and Fort Hamilton to the south. Yellow Hook was renamed Bay Ridge in 1853 to avoid negative connotations with yellow fever at the time. Bay Ridge became developed as a rural summer resort during the mid-19th century. The arrival of the New York City Subway's Fourth Avenue Line (present-day R train) in 1916 led to its development as a residential neighborhood. Until the early 1970s, Bay Ridge was dominated by its Norwegian community, but by the early 21st century it had a large Irish, Italian, and Greek population.

• 8200 Narrows Avenue House, designed by James Sarsfield Kennedy in 1917, is a city landmark.^[13]
• American Veterans Memorial Pier (commonly referred to as the 69th Street Pier) at Bay Ridge Avenue and Shore Road is the community's key seaside recreation spot. Sports fishermen travel to fish the waters of "The Bay Ridge Anchorage" and along the seawall promenade that runs south from the pier to the Verrazzano-Narrows Bridge and east along Gravesend Bay. The pier features a sculpture that emits a beam of light as a memorial to those who lost their lives on September 11, 2001. Commuter ferry service operated between this pier and the St. George Ferry Terminal in Staten Island from 1912 until 1964, the year the Verrazzano Bridge opened.^[87] Ferry service to Wall Street and points along the western coast of Brooklyn began in 2017 from the pier as part of NYC Ferry's South Brooklyn route.^[88]
• Bennet-Farrell-Feldman House, located at 125 95th St, was built in 1847 and is now an official city landmark.^[20] An accompanying structure, thought to have been used as a barn, couldn't be saved and was demolished. Legend has it the house was turned so that its "widow's walk," a balcony that traditionally faces the sea so women left at home could watch for their husbands' ships, would no longer face the Narrows.^[89]
• Doctors' Row, a series of houses along Bay Ridge Pkwy between Fourth and Fifth Avenues (see § Doctors' Row)^[10]
• Fort Hamilton, an active military base near the Verrazzano-Narrows Bridge (see § Fort Hamilton Army Base)
• The Houses at 216–264 Ovington Ave. were listed on the National Register of Historic Places in 2007.^[90]
• Owl's Head Park (also known as Bliss Park), in the neighborhood's northwest corner, was previously the private estate of the Bliss Family, for whom nearby Bliss Terrace is named. They sold what remained of the estate to the city in 1928 for $850,000, after Eliphalet Williams Bliss specified in his will 25 years earlier that he wanted the city to buy the land and convert it into parkland. Before them, a portion of the property was owned by Henry C. Murphy, a former Mayor of Brooklyn, ambassador, congressman and New York State Senator for whom the nearby Senator Street is named. Remnants of the estate—mansion, stable, observation tower—were still visible into the 1930s and 40s, when they were finally demolished, having been left to fall into disrepair.^[91] It is a 24-acre (97,000 m²) walking park^[92] that has a state of the art skate park, dog run, children's playground and basketball courts; it has the first concrete skatepark built in Brooklyn.^[93]
• The Senator Street Historic District was listed on the National Register of Historic Places in 2002.^[90]
• Step streets are public staircases in the middle of a street. As a rule they were placed on hills that were too steep to build a road for cars but still allow access to pedestrians.^[94]
• St. John's Episcopal Church^[95] was where Robert E. Lee served as a vestryman and where his future "right hand," Thomas J. "Stonewall" Jackson, was baptized.^[96] The building no longer hosts services.^[97]