Khadzhyder Lagoon

Khadzhyder Lagoon (, Lacul Hagider) is a salty lagoon in the Tuzly Lagoons group in Bilhorod-Dnistrovskyi Raion of Odesa Oblast, Ukraine. It is separated from the Alibey by a sandbar. Two river, Khadzhyder River and Hlyboka River, inflow into the lagoon. The last one inflows west to the village Bezymyanka, it has a length 24 km, watershed area 80.3 km2. The lagoon has a 4 km length and 2.5 km width. Two villages, Lyman and Bezymyanka, are located on the coast of the lagoon.

The lagoon was a part of the Alibey Lagoon in historical period, and appeared as a result of separation of the Khadzhyder River mouth by a sandbar. Several kurhans of Catacomb culture are located near the village of Lyman.

The water body is included to the Tuzly Lagoons National Nature Park.

Hydronym
«The valley of Hajji»
 * Hajj (honorific title given to a Muslim person who has successfully completed the Hajj to Mecca), Hajj  (حج hajj) is an Islamic pilgrimage.
 * Dere (valley)

The name of the lagoon Khadzhyder  on the historical maps:
 * 1877 — L. Hadji Der.