Who Owns the Atlantic Coast?

No single entity owns the Atlantic coast. It is a shared, multi-jurisdictional coastline:

• Sovereign Nations: Canada, USA, Mexico, Cuba, Bahamas, Brazil, Argentina, UK (Bermuda, Falklands), France (Guiana, islands), Netherlands (Caribbean), Denmark (Greenland), Norway, Iceland, Ireland, UK, Portugal, Spain, Morocco, Western Sahara, Mauritania, Senegal, Gambia, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Côte d'Ivoire, Ghana, Togo, Benin, Nigeria, Cameroon, Equatorial Guinea, Gabon, Congo, DRC, Angola, Namibia, South Africa.
• Subnational: U.S. states (ME to FL), Canadian provinces, Brazilian states, etc.
• International Law: UNCLOS defines territorial sea (12 nm), EEZ (200 nm), continental shelf. High seas beyond are global commons.
• Private: Waterfront property owners hold rights to mean high water line (varies by jurisdiction); public trust doctrine often preserves beach access.

Ownership is a layered legal framework, not a single deed.