Bajjika is an Indo-Aryan language variety spoken in parts of Bihar, India and in Nepal.

[1] Bajjika language is spoken in the north-western part of Bihar, in a region popularly known as Tirhut.

[3] A 2013 estimate based on 2001 census data suggests that there were 20 million Bajjika speakers in Bihar.

[10] People from mainly Maithil Brahmins and Karan Kayasthas castes supported the Maithili movement in the days when it was to be subsumed as a dialect of Hindi, hence anti-Maithili factions branded the Maithili Language as a Brahminical language while inciting various other castes in the Mithila region to project Angika and Bajjika as their mother tongues, attempting to break away from the Maithili-based regional identity.

[13][14] In a move aimed at protecting indigenous language and culture, the Bihar government has decided to set up two new academies to promote local dialects; Surjapuri and Bajjika, spoken in politically influential Seemanchal and Bajjikanchal regions of the state.