The article describes speech level and honorific system in Javanese. It aims at investigating the influence of speech levels on the honorific system in Javanese. The investigation was conducted based on empirical data of Javanese utterances in Javanese society. It used the research results on speech level in Javanese by Poedjosoedarmo et al. (1979) and the addressing system in Javanese by Suhardi et al. (1986) as a frame of reference. The results show a correlation between speech level and the honorific system in Javanese. It can be assumed that speech level influences the honorific system. In communication, the use of honorifics is by the speech level used. For example, the honorific address eyang ‘grandmother’ is only used in a polite speech, such as Eyang, mbok length wae. ‘Grandmother, please sit down.’. However, the honorific address kang ‘elder brother’ (a clipped-form of taking ‘older brother’) can be used not only in the polite speech, like Badhe tindak pundit Kang? ‘Where are you going, Brother?’, but in less polite speech, such as Dhuwite and Kang? ‘Where is the money, Brother?. Based on the previous examples, it is clear that the use of honorifics, such as in terms of address, is influenced by the speech levels.