What is the main language spoken in Nis Serbia?

The main language spoken in Nis, Serbia is Serbian. Serbian is a South Slavic language that is spoken primarily in Serbia and also in Bosnia and Herzegovina, Croatia, Montenegro, Kosovo, and North Macedonia. It is a member of the Slavic branch of the Indo-European language family. Serbian is closely related to other South Slavic languages such as Croatian, Bosnian, and Montenegrin. It is written in the Cyrillic script.