The İğneada Floodplain Forests National Park (Turkish: İğneada Longoz Ormanları Milli Parkı), established on November 13, 2007, is a national park located within Kırklareli Province in Marmara Region of Turkey. The national park covers an area of 3,155 ha (7,800 acres) and is located at İğneada town on the Turkish-Bulgarian border at 25 km (16 mi) far from Demirköy district of Kırklareli Province. Streams running down from the Strandzha mountain range towards Black Sea formed alluvium on the shore, where floodplain (Turkish: longoz) occurred due to seasonal floodings.