* Spoken languages by native speakers?
* Mandarin Chinese
* Hindi
* English
* Spanish
* Arabic
* Spoken languages overall (native and non-native)?
* English
* Mandarin Chinese
* Hindi
* Spanish
* Arabic
* Languages with the most learners?
* English
* Mandarin Chinese
* Spanish
* French
* Arabic
* Languages with the most resources (e.g., books, online materials)?
* English
* Chinese
* Spanish
* French
* German
* Languages most influential in technology or business?
* English
* Chinese
* Japanese
* German
* Korean
It's important to be specific about your criteria when discussing "top" languages. Each criterion will give you a different list!