Jola-Fonyi also known as Diola or Diola-fogny or Dyola or Jóola or Jola-fogny or Joola-fogny or Kujamataak or Kújoolaak or Kati kúfooñaak or Kújoolaay or Yola is a language spoken in Casamance region of Senegal by the Jola-Fonyi people.
It belongs to the Jola group of languages .
Jola-Fonyi language has approximately 1,000,000 native speakers.
The language has 4 dialects; Buluf, Kombo, Kalounaye and Narang.