Map - Banyumas Regency (Kabupaten Banyumas)

Banyumas (ꦧꦚꦸꦩꦱ꧀, formerly spelt "Banjoemas") Regency is a regency (kabupaten) in the southwestern part of Central Java province in Indonesia. Its capital is the town of Purwokerto, but that town no longer has a central administration and is split over four of the districts within the Regency, with a combined population of 230,235 as at mid 2021. The Regency covers an area of 1,327.59 km2, and had a population of 1,554,527 at the 2010 Census and 1,776,918 at the 2020 Census; the official estimate of population as at mid 2021 was 1,789,630.

The term Banyumasan is also used as an adjective referring to the culture, language and peoples of the wider Banyumas area, equivalent to the pre-independence Banyumas Residency. The language of Banyumasan is of Austronesian origin, and is usually considered to be a dialect of Javanese.

Banyumas Regency comprises twenty-seven districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as at mid 2021. The table also gives the location of the district administrative centres, and the number of administrative villages (rural desa and urban kelurahan) in each district.

The villages comprise 30 urban kelurahan (all 27 in the 4 Purwokerto Districts, plus 3 in Sumpiuh District) and 301 rural desa.