Northern Borderlands dialect[a] is a dialect of the Polish language, spoken by the Polish minorities in Lithuania and in northwestern Belarus.

[1][2] The Northern Borderlands dialect retains the same vowel system as standard Polish, however there is often vowel reduction in unstressed syllables.

Most of the major differences appear in the realization of consonants.

See Polish phonology for more information on allophones.

The phoneme charts are as follows: