Николаевская область
Kodyma () is a right tributary of the Southern Buh river of Ukraine. Originating from springs in a boggy valley near the village of Budei (), Kodymsky Raion, Odessa Oblast, it flows within the Odessa Oblast and Mykolaiv Oblast and joins Southern Buh about 199 km away from its mouth, near Pervomaisk, Mykolaiv Oblast.