English

• United States
• United Kingdom
• Canada
• Australia
• New Zealand
• Ireland
• South Africa
• Nigeria
• India
• Pakistan (as a second language)
• Philippines
• Jamaica
• Trinidad and Tobago
• Barbados
• Belize

Russian

• Russia
• Belarus
• Kazakhstan
• Ukraine (regional use)
• Kyrgyzstan
• Latvia (as a minority language)
• Estonia (as a minority language)
• Lithuania (as a minority language)
• Moldova (as a minority language)

Arabic

• Egypt
• Saudi Arabia
• Iraq
• Syria
• Jordan
• United Arab Emirates
• Lebanon
• Tunisia
• Algeria
• Morocco
• Oman
• Mauritania
• Yemen
• Palestine
• Kuwait
• Bahrain
• Qatar

Portuguese

• Portugal
• Brazil
• Mozambique
• Angola
• GuineaBissau
• East Timor (TimorLeste)
• Equatorial Guinea (alongside French and Spanish)

Spanish

• Spain
• Mexico
• Colombia
• Argentina
• Peru
• Venezuela
• Chile
• Ecuador
• Guatemala
• Cuba
• Dominican Republic
• Honduras
• Paraguay
• Bolivia (alongside indigenous languages)
• Nicaragua
• El Salvador
• Costa Rica
• Panama

French

• France
• Canada (especially Quebec)
• Belgium
• Switzerland
• Luxembourg
• Democratic Republic of the Congo
• Ivory Coast
• Senegal
• Cameroon
• Madagascar
• Burkina Faso
• Mali
• Niger
• Guinea
• Chad
• Gabon
• Djibouti

German

• Germany
• Austria
• Switzerland
• Belgium (alongside French and Dutch)
• Luxembourg
• Liechtenstein
• Namibia (as a minority language)

Chinese (Mandarin and other dialects)

• China
• Taiwan
• Singapore
• Malaysia (alongside Malay and English)

Bengali

• Bangladesh
• India (primarily in West Bengal and Tripura)

Hindi

• India
• Fiji (as a variant known as Fiji Hindi)

Urdu

• Pakistan
• India (as a recognized minority language)

Farsi

• Iran
• Afghanistan: Known as Dari 
• Tajikistan: Known as Tajik

This is an estimated list.