Yugambeh–Bundjalung, also known as Bandjalangic, is a branch of the Pama–Nyungan language family, that is spoken in north-eastern New South Wales and South-East Queensland.

Yugambeh–Bundjalung was historically a dialect continuum consisting of a number of varieties, including Yugambeh, Nganduwal, Minjangbal, Njangbal (Nyangbal), Biriin, Baryulgil, Waalubal, Dinggabal, Wiyabal, Gidabal, Galibal, and Wudjeebal.

W. E. Smythe, a doctor in Casino, knew the Bundjalung quite well noting in his time the language was spoken widely.

'[2] Adding to the confusion is the use of multiple names by different groups, i.e. what one group calls another may not be what it calls itself, or the name of a dialect may change, e.g. Terry Crowley was originally told Wehlubal for the Baryulgil dialect, while a later researcher was given Wirribi.

The earliest sources of anthropological work dated from the mid to late 1800s does not give a name for the entire language chain; however, it is clear from sources that particular writers were aware of it, in most instances referring to it by their local variety name or with a descriptor like 'this language with slight variation'.

[7] Many of the dialects and branches are confined by natural features such as river basins, mountain ranges and dense bushland.

At the time of the first European settlement in the mid-1800s, the Yugambeh-Bundjalung peoples on the north coast of New South Wales and southeast of Queensland spoke up to twenty related dialects.

The dialects form recognisable clusters that share phonological and morphological features, as well as having higher degrees of mutual intelligibility.

Crowley analysed not only the vocabulary but grammar of the varieties including comparative cognate figures and examples from various dialects.

[11] Yugambeh-Bundjalung varieties do not have voicing contrasts for their obstruent sequences, and so phonological literature varies in its representation of these consonants- some linguists have chosen the symbols /p/, /k/, /c/, /t/, and others have decided upon /b/, /g/, /ɟ/, /d/.

Some linguists posit their existence in order to avoid an analysis that involves onset-less syllables, which are usually held to be non-existent in Australian languages.

[11] Yugambeh-Bundjalung is a stress-timed language and is quantity-sensitive, with stress being assigned to syllables with long vowels.

[11] Like many Australian languages, Yugambeh-Bundjalung is thought to have a constraint that states that all syllables must have a consonant onset.

The northern Tweed-Albert language have mibin for 'man' and jalgany for 'woman', compared to the use of baygal and dubay by other varieties respectively.

Another vocabulary isogloss is jabu ('boy') and mih ('eye') used in all branches, except the Middle-Clarence language which uses janagan and jiyaw respectively.

The imminent aspect (used in other varieties for most instances that use the English future tense) has shifted in the Tweed-Albert Language to an irrealis mode, now denoting the potential mood, while the continuous aspect in conjunction with a time word is now used for future tense situations.