Jeyranbatan reservoir, reservoir in Absheron District, Azerbaijan

Jeyranbatan reservoir is a drinking-water reservoir in the Absheron district of Azerbaijan, beside the settlement of Jeyranbatan. It was formed on the site of the Davayatahy and Jeyranbatan lakes, has a surface area of 13.9 km², a length of 8.74 km, a maximum width of 2.15 km and a maximum depth of 28.5 m, and is fed by the Samur-Absheron canal.

The reservoir was built on a site previously occupied by lakes Dəvəyatağı and Ceyranbatan, following a plan drawn up in the early 1900s by British engineer William Lindley to bring Samur river water to the Absheron peninsula. Work began only half a century later: the Samur-Devechi canal was extended, the reservoir was created with a capacity of 186 million m³, and filling started in 1957. The water treatment complex was built in three stages, with the first unit commissioned on 8 September 1961.

The reservoir lies beside the settlement of Jeyranbatan in Absheron District, on the Absheron Peninsula. Since 1960 a three-part sanitary protection zone has surrounded it, and in 2001 the first zone was expanded and fenced. The water is drinking water, so access to the shore is restricted and swimming is not allowed.

The name "Ceyranbatan" means "the place where the gazelle drowned" in Azerbaijani. The reservoir was formed in the beds of two former lakes, Dəvəyatağı and Ceyranbatan, and its water is fed by the Samur-Absheron channel.