English - a language spoken in many countries.

English is not spoken all over the world. Do you know this? No, it is not spoken all over the world and it is also not the most spoken language of the world. It is also not used by most of the people. But, it is the official language of many counties of the world. That is one of the reasons why IELTS is a mandatory test and is one of the eligibility criteria to study, work or settle in these English Speaking countries of the world.
So let us see how many countries use the English language and has called it the official language of their nation.
There are 54 countries of the world that have declared that English is their official language. Besides it is a known fact that 400 million people of the world use English.

The table includes nations which use English as their medium of instruction and nations which call it their official language.

Anguilla	Ireland, Northern	Singapore
Antigua and Barbuda	Ireland, Republic of	Solomon Islands
Australia	Jamaica	South Africa
Bahamas	Kenya	Swaziland
Barbados	Lesotho	Tanzania
Belize	Liberia	Tonga
Bermuda	Malawi	Trinidad and Tobago
Botswana	Malta	Turks and Caicos Islands
British Virgin Islands	Mauritius	Uganda
Cameroon	Montserrat	United Kingdom
Canada (except Quebec)	Namibia	Vanuatu
Cayman Islands	New Zealand	Wales
Dominica	Nigeria	Zambia
England	Papua New Guinea	Zimbabwe
Fiji	St. Kitts and Nevis
Gambia	St. Lucia
Ghana	St. Vincent and the Grenadines
Gibraltar	Scotland
Grenada	Seychelles
Guyana	Sierra Leone