瓦尔塔河（波兰语：Warta）位于波兰中西部，是奥得河的一条支流，也是该国第三长河。它发源于西里西亚省扎维尔切附近，流经罗兹省、大波兰省和卢布斯卡省，最终在奥得河畔科斯琴注入奥得河。

瓦尔塔河经由诺泰奇河和比得哥什运河与维斯瓦河相连。

The Warta (Polish pronunciation: [ˈvaɾta] German:Warthe; Latin:Varta) is a river in western-central Poland, a tributary of the Oder river. With a length of approximately 808 kilometres (502 mi) it is the country's third longest river. The Warta has a basin area of 54,529 square kilometers, and it is navigable from Kostrzyn nad Odrą to Konin, approximately half of its length. It is connected to the Vistula by the river Noteć and the Bydgoszcz Canal (Kanał Bydgoski) near Bydgoszcz.