The Bug estuary (Ukrainian: Бузький лиман, romanizedBuz'kyi lyman) is an estuary of the Southern Bug. It is 82 kilometres (51 mi) long and up to 11 kilometres (6.8 mi) wide. Together with the Dnieper estuary it makes the Dnieper–Bug estuary on the northern coast of the Black Sea. The city of Mykolaiv is located on the Bug estuary.

Bug estuary
Satellite view of the Bug estuary
Location of estuary off the coast of Ukraine
Location of estuary off the coast of Ukraine
Bug estuary
LocationUkraine
Coordinates46°52′N 31°59′E / 46.867°N 31.983°E / 46.867; 31.983
Typeestuary
Primary inflowsSouthern Bug
Basin countriesUkraine
Max. length82 km (51 mi)
Max. width11 km (6.8 mi)
SettlementsMykolaiv