You have thought about learning another language right? However, which language? Maybe you want to travel the world, maybe you need a second language for work. Which is the best language to learn? The Top 10 most spoken languages on the planet today. 1. English 2. Mandarin Chinese 3. Hindi 4. Spanish 5. French 6. Arabic 7. Bengali 8. Russian 9. Portuguese 10. Indonesian Clearly, this language is on the rise with 15% of the global population fluent in English. Standing between you and your goals of traveling or great career-defining prospects is some time learning English. Nearly 43% of the world's population is bilingual, with the ability to switch between two languages with ease. For example, 66% of the English speakers learned it as a second language Luckily for you, this is what we do.