Oyster Bay, New York can refer to:

• Oyster Bay (town), New York
• Oyster Bay (hamlet), New York
• Oyster Bay (inlet), also Oyster Bay Harbor, an inlet on the north shore of Long Island, New York
• South Oyster Bay, a lagoon off the southern shore of Long Island, New York
• Massapequa, New York, which was called South Oyster Bay until late in the 19th century