Coos

Coos may refer to:

• Cowasuck, also known as Cowass or Coös, an Algonquian-speaking Native American tribe in northeastern North America
• Coos people, an Indigenous people of the Northwest Plateau in Oregon
• Confederated Tribes of Coos, Lower Umpqua and Siuslaw Indians, federally recognized tribe of Coos people

• Coös County, New Hampshire
• Coos Bay, Oregon, a small city on Coos Bay
• Coos County, Oregon

• Coos Bay, an inlet of the Pacific Ocean
• Coos River, southwest Oregon

• Coosan languages, sometimes called Coos or Kusan, a language family formerly spoken on the southern Oregon coast
  • Coos, another name for the Hanis language, one of the two extinct Coosan languages of the southern Oregon coast

• Coosa (disambiguation)
• Kos, an island southwest of Asia Minor