Banyumas or "Banjoemas" is a regency (Indonesian: kabupaten) in the southwestern part of Central Java province in Indonesia. Its capital is Purwokerto.
The term Banyumasan is also used as an adjective referring to the culture, language and peoples of a wider Banyumas area, equivalent to the pre-independence Banyumas Residency. The language of Banyumasan are of Austronesian origin, and is usually considered to be a dialect of Javanese.
Today the majority of the Javanese people identify themselves as Muslims. Because Javanese civilization has been influenced by more than a millennium of interactions between the native animism and the Indian Hindu—Buddhist culture, there are traces of their influences in Javanese history, culture, traditions and art forms.