Chuy Province or Chui Province (Kyrgyz: Чүй областы, Russian: Чуйская область) is the northernmost province (oblast) of the Kyrgyz Republic. It is bounded on the north by Kazakhstan, and clockwise, Issyk Kul Province, Naryn Province, Jalal-Abad Province and Talas Province. Its administrative center is Bishkek, but from 2003 to May 2006 it was Tokmok.
The main northwest part of the province is flat, a rarity in Kyrgyzstan. This is the valley of the Chu River. The valley's black soil is very fertile and is largely irrigated with water diverted from the Chu River. Agricultural production includes wheat, maize, sugar beets, potatoes, lucerne, and various vegetables and fruits. During the Soviet period, various agro-processing and other industries were established throughout the province, giving rise to a number of urban centers such as Tokmok, Kant and Kara-Balta.
The Kyrgyz Ala-Too mountains form southern border of the province, and the northern border of Talas Province. There are many hiking and trekking routes accessible from the towns in the valley. The southwestern heel of the province over the Kirgiz Alatau is geographically more like Naryn province. The northeast panhandle is the Chong Kemin Valley.
The main east-west transportation axis of the province is the Taraz-Bishkek-Balykchy highway, running through most major cities of the province. This road's section west of Bishkek is part of European route E40, known locally as Highway M-39 (based on the old USSR highway numbering scheme). The same numbers apply to the road that continues north-east from Bishkek toward Almaty, crossing the Chuy River and leaving the province for Kazakhstan at Korday border crossing. The only railway in the province runs along the same Taraz-Bishkek-Balykchy route; it sees comparatively little use these days.