Doaba is the region of Punjab between Beas and Sutlej rivers. People of this region are given the demonym "Doabia". The dialect of Punjabi spoken in Doaba is called "Doabi". The worldwide used word "Kidaa" is a Doabi word. The term "Doaba" or "Doab" is derived from Persian (do āb "two water") meaning "land of two rivers". It is also referred to as Bist Doab (Bi- for Beas and -st for Sutlej).
This area is also called the NRI Hub of Punjab as a consequence of the migration of a significant percentage of Doabias.

The following districts are classified as Doaba:

Hoshiarpur
Kapurthala
Jalandhar
Shaheed Bhagat Singh Nagar (formerly Nawanshahr)