|Location||Lankaran Rayon, Azerbaijan|
|Max. length||550 m (1,800 ft)|
|Surface area||24.6 km2 (9.5 sq mi)|
|Water volume||52 million cubic metres (42,000 acre⋅ft)|
Khanbulanchay reservoir (Azerbaijani: Xanbulançay su anbarı), also known as Khanbulaqchay reservoir, is a lake in Lankaran Rayon of southeastern Azerbaijan. The name means "the spring of the khan" in Azerbaijani language.
The reservoir was built Bəşəriçay river in 1976. The overall area is 24.6 km2 (9.5 sq mi). The volume of water in the reservoir is 52 million m³. The altitude of the dam built on the reservoir is 64 m (210 ft), the length is 550 m (1,800 ft). The reservoir is used for irrigation purposes in 22 ha (0.22 km2) of land in subtropical zone through the 7.8 km (4.8 mi) and 8.2 km (5.1 mi) long channels.
- Geographical names: Xanbulaq Su Anbarı: Azerbaijan Retrieved on 25 October 2010
- Information on Water Reservoirs Retrieved on 25 October 2010
- Ministry of Ecology: Su anbarları Archived 2014-10-17 at the Wayback Machine Retrieved on 25 October 2010
- AZƏRBAYCAN RESPUBLİKASI MELİORASİYA VƏ SU TƏSƏRRÜFATI AÇIQ SƏHMDAR CƏMİYYƏTİ Archived 2011-01-19 at the Wayback Machine retrieved on 25 October 2010