I just arrived in Belgrade. I am browsing the map in OpenStreeMap.org and in the OSMAnd programme. Everything is in Serbian, street names, points of interest, etc. Check it by yourself.
The difficulty for me with Serbian is that it is coded in a different alphabet, the Cyrillic. This means that searching for a keyword like "museum" returns no results. Even if I knew how to write "boulevard" or "restaurant" in Cyrillic, I would need a different keyboard in my laptop.
Is there any possibiliy of changing the labelling language in OpenStreetMap? Or at least of changing the alphabet, so that the label
Београд is displayed as