As the second most widely spoken Slavic language after Russian, Polish speakers stand at about 46 million strong. Although there are numerous communities of Polish speakers living abroad, Polish is not nearly as influential a language as some of its other European counterparts.
In the European Union it has 65 million speakers but if you count the numerous regions abroad where it is spoken as a second language then the number gets closer to 90 million. Of note, it is the official language of the Vatican and carries considerable weight in the worlds of music (particularly opera), international sports, and design/fashion.
10. Hindustani (Hindi/Urdu)
These sister languages are very closely related and really only differ in their writing system. Urdu, the official language of Pakistan, is written using Arabic script while Hindi, the official language of India, is written in Devanagari script. Although neither has significant influence outside of the Indian Subcontinent, they have a combined total of over 200 million native speakers and hundreds of millions more that speak them as a second language. It should be noted, however, that a multitude of languages are spoken throughout India and although Hindi is the official language, certain regions like the Dravidian south prefer English which is often seen as an “associate official language”.
There are two reasons that Mandarin is #5 on this list. First, it has close to a billion native speakers, which is almost three times as much as any other language. The truth is, however, that it really isn’t spoken anywhere beyond Southeast Asia other than in Taiwan or Chinese communities in other parts of the world. So, although at present it is not very influential in a global sense, due to a robust economy it very well may begin to flex its muscles in the near future.