These data below are written in this format: language-countries where it spoken-population (in million)
1. Chinese, Mandarin- Brunei, Cambodia, China, Indonesia, Malaysia, Mongolia, Philippines, Singapore, S. Africa, Taiwan, Thailand-1120
2. English-Australia, Belize, Botswana, Brunei, Cameroon, Canada, Eritrea, Ethiopia, Fiji, The Gambia, Ghana, Guyana, India, Ireland, Israel, Lesotho, Liberia, Malaysia, Micronesia, Namibia, Nauru, New Zealand, Palau, Papua New Guinea, Philippines, Samoa, Seychelles, Sierra Leone, Singapore, Solomon Islands, Somalia, S. Africa, Suriname, Swaziland, Tonga, U.K., U.S.,Vanuatu, Zimbabwe, many Caribbean states, Zambia-480
3. Spanish- Algeria, Andorra, Argentina, Belize, Benin, Bolivia, Chad, Chile, Colombia, Costa Rica, Cuba, Dominican Rep., Ecuador, El Salvador, Eq. Guinea, Guatemala, Honduras, Ivory Coast, Madagascar, Mali, Mexico, Morocco, Nicaragua, Niger, Panama, Paraguay, Peru, Spain, Togo, Tunisia, United States, Uruguay, Venezuela-332
4. Arabic-Egypt, Sudan, Algeria, Morocco, Tunisia, Lybia, Saudi Arabia, Syria, Jordan, Yemen, UAE, Oman, Iraq, Lebanon-235
5. Bengali-Singapore, India, Bangladesh-189
6. Hindi-Uganda, South Africa, Singapore, Nepal, India-182
7. Russian-Uzbekistan, U.S., Ukraine, Turkmenistan, Russia, Mongolia, Moldova, Lithuania, Latvia, Kyrgyzstan, Kazakhstan, Israel, Georgia, Estonia, China, Belarus-180
8. Portuguese- São Tomé and Príncipe, Portugal, Mozambique, Guinea-Bissau, France, Cape Verda, Brazil, Angola-170
9. Japanese-Taiwan, Singapore, Japan-125
10. German- Austria, Belgium, Bolivia, Czech Rep., Denmark, Germany, Hungary, Italy, Kazakhstan, Liechtenstein, Luxembourg, Paraguay, Poland, Romania, Slovakia, Switzerland-98
11. Chinese, Wu-China-77.2
12. Javanese-Singapore,Malaysia,Indonesia-75.5
13. Korean-Thailand, Singapore, South Korea, North Korea, Japan, China-75
14. French- Vietnam, Vanuatu, Tunisia, TOgo, Siwtzerland, Seychelles, Senegal, Rwanda, Niger, Morocco, Monaco, Mauritania, Mali, Madagascar, Luxembourg, Laos, Ivory Coast, Haiti, Guinea, Gabon, France, Djibouti, Democratic Republic of Congo, Congo, Comoros, Chad, Canada, Cameroon, Cambodia, Burundi, Burkina Faso, Benin, Belgium, Andorra, Algeria-72
15. Turkish-Uzbekistan, Turkey, Romania, Macedonia, Greece, Cyprus, Bulgaria-69
16. Vietnamese-Vietnam, China-66.7
17. Telugu-Singapore, India-66.4
18. Cantonese-Vietnam, Thailand, Singapore, Philippines, Panama, Malaysia, Indonesia, Costa Rica, China, Brunei-66
19. Marathi-India-64.8
20. Tamil-Sri Lanka, South Africa, Singapore, Mauritius, Malaysia, India-63.1
source: The 50 Most Widely Spoken Language; The World's Most Widely Spoken Language