Javanese, as the mother tongue language of Javanese ethnic, has been a symbol in Yogyakarta city. It has been maintained time by time by the indigenous people and the Yogyakarta Sultanate to save its language and its culture. However, there has been significant change in the application of Javanese because of the new comers from outside Yogyakarta. This paper will study about the Javanese language status in Yogyakarta. We use questionnaires which are distributed to the native people of Yogyakarta. Therefore, people prefer to use Bahasa Indonesia (Indonesian), as the communicative language, rather than Javanese language. It is because Bahasa Indonesia is the national language which can accomodate people to communicate. If Javanese language is not maintained intensively, it will be replaced by Bahasa Indonesia. Key words: Javanese, identity, Bahasa Indonesia, Yogyakarta