Tillamook Bay
General data
- Name: Tillamook Bay
- Water system: Pacific Ocean
- Water type: Bay
- Progression: Pacific Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Tillamook Bay is a small inlet of the Pacific Ocean, approximately 10 km long and 3 km wide, on the northwest coast of the U.S. state of Oregon. It is located just north of Cape Meares in western Tillamook County approximately 120 km west of Portland.