There are many options to learn foreign languages in Warsaw. If you are an expat and you wish to learn Polish you can join one of many schools of Polish for foreigners in the city. But be prepared for a real challenge as Polish is one of the hardest, and supposedly the most grammatically-complex Slavic language and one of the most difficult to learn.
Some of the Polish schools for foreigners:
There are also many foreign language schools, where you can learn anything from French and Spanish to Japanese and Chinese. There are currently over 300 language schools in the city.
For the full list of schools click here:
You can also check them on the map here: