Nestucca Bay is a bay formed by the confluence of the Nestucca River and the Pacific Ocean located in northwest Oregon in the United States. It is located near the town of Pacific City in southwestern Tillamook County, approximately 12 mi (19 km) south of Cape Lookout. The bay is a bar-built estuary and totals 1,000 acres (4.0 km²) in area. The Nestucca and Little Nestucca rivers enter the bay. The bay is separated from the Pacific Ocean by the Nestucca Spit which includes Bob Straub State Park.