| blank4_info_sec1 = Maithili
| blank5_name_sec1 = Official Language
| blank5_info_sec1 = Hindi
| website = {{URL|www.northbihar.in}}
}}
North Bihar ([[Hindi]]: उत्तर बिहार, उतरबारी बिहार/ উতরবারী বিহার) is a term used for the region of [[Bihar]], lying on north of [[Ganga river]] and east of [[Gandak river]].ref
Generally speaking, it includes:
*[[Tirhut division]]
*[[Darbhanga division]]
*[[Kosi division]]
*[[Purnia division]]
*[[Khagaria district]] and [[Begusarai district]] of [[Munger division]]
*[[Naugachia|Naugachia police district]] of [[Bhagalpur district]] of [[Bhagalpur division]]
Floods in North Bihar has been its biggest problem. The region has 8 active river system. One or more of them bring flood every year. The region is counted among most poor (economically) regions of India. Unemployment, Illiteracy, migration and related issues have been the grief of North Bihar.
The recent unbalanced development of Bihar (with South Bihar developing many times faster than North Bihar) has added to its grief.