The Studva (Serbo-Croatian: Studva / Студва) is a river in eastern Croatia and northern Serbia, a 37 km-long right tributary to the Bosut river. It flows entirely within the Syrmia region of both Croatia and Serbia (Vojvodina). The Studva originates from the marshes of the western Syrmia in Croatia (Spačva sub-region), near the village of Gunja. It is a slow, meandering river and spills over into several marshes as it flows by the villages of Đurići, Drenovci, Soljani and Vrbanja. There is a canal from the Studva to the river Spačva.