* The Atlantic coast of North America? This would include languages like English, French, Spanish, Portuguese, and various indigenous languages.
* The Atlantic coast of South America? This would include Portuguese, Spanish, and various indigenous languages.
* The Atlantic Ocean islands? This would include languages like Portuguese, Spanish, English, French, and Creole languages.
* The Atlantic region of Canada? This would include English, French, and various indigenous languages.
Once you specify the region you're interested in, I can give you a more accurate list of the languages spoken there.