The Kokatha language, also written Kukatha, Kokata, Gugada, and other variants, and also referred to as Madutara, Maduwonga, Nganitjidi, Wanggamadu, and Yallingarra and variant spellings of these, is an Australian Aboriginal language of the Western Desert group traditionally spoken by the Kokatha people, whose traditional lands are in the western part of the state of South Australia, north of the Wirangu people.

Norman Tindale recorded Kokatha speakers at Tarcoola, Kingoonya, Pimba, and McDouall Peak; west to Ooldea; north to Stuart Range and Lake Phillipson.

[3] Today, Kokatha people live in Ceduna, Koonibba, Port Augusta, Adelaide and other places around the state.

[9] A wordlist compiled by Pastor August Hoff, Superintendent of Koonibba Mission from 1920 to 1930, between 1920 and 1952 and published by his son Lothar in 2004, included words from the Wirangu, Kokatha and Pitjantjatjara languages.

[10][11] According to Kokatha woman Dylan Coleman in her 2010 PhD thesis, Luise Hercus' work entitled A grammar of the Wirangu language from the west coast of South Australia (1999) was based on the words spoken by two fluent Kokatha speakers, who were Coleman's grandmothers.