Nelson River
 The Nelson River is a river of north-central North America in the Canadian province of Manitoba. Its full length is 2575 kilometres (1600 mi) it has mean discharge of 2370 cubic metres per second (84000 cu ft/s) and has a drainage basin of 892300 square kilometres (344500 sq mi) of which 180000 square kilometres (69000 sq mi) is in the United States. The river drains Lake Winnipeg and runs 644 kilometres (400 mi) before it ends in Hudson Bay.