English is the most widely spoken language in the Commonwealth of Nations, with over 1.5 billion speakers.

English is the official language of the Commonwealth of Nations, as it is the language of the British monarchy, which is the head of the Commonwealth.

English is the most widely spoken language in Africa among Commonwealth countries, with over 300 million speakers.

Hindi is the most widely spoken language in Asia among Commonwealth countries, with over 500 million speakers.

English is the most widely spoken language in the Caribbean among Commonwealth countries, with over 100 million speakers.

English is the most widely spoken language in Oceania among Commonwealth countries, with over 20 million speakers.

English is the most widely spoken language in Europe among Commonwealth countries, with over 100 million speakers.

English is the most widely spoken language in North America among Commonwealth countries, with over 300 million speakers.

English is the most widely spoken language in South America among Commonwealth countries, with over 10 million speakers.

English is the most widely spoken language in Antarctica among Commonwealth countries, as it is the language of the British Antarctic Territory.

Hindi is the most widely spoken language in the Commonwealth of Nations, excluding English, with over 500 million speakers.

Urdu is the most widely spoken language in the Commonwealth of Nations, excluding English and Hindi, with over 200 million speakers.

Bengali is the most widely spoken language in the Commonwealth of Nations, excluding English, Hindi, and Urdu, with over 200 million speakers.

French is the most widely spoken language in the Commonwealth of Nations, excluding English, Hindi, Urdu, and Bengali, with over 100 million speakers.

Spanish is the most widely spoken language in the Commonwealth of Nations, excluding English, Hindi, Urdu, Bengali, and French, with over 50 million speakers.