At least 58, including English speaking countries like the U.S. which have no official language, but which are predominantly English: Antigua and Barbuda Australia Bahamas Barbados Beliza Botswana...
In Europe, England, Scotland, Northern Ireland have English as the official language. A number of countries have more than one official language; Malta and Ireland have English as one of two official...
The following island countries* have English, either as their official language or as one of their official languages: Australia Bahrain Barbados Cuba Cyprus Dominica Grenada Iceland Jamaica Kiribati...