The Clutha River is the second longest river in New Zealand flowing south-southeast 338 kilometres through Central and South Otago from Lake Wanaka in the Southern Alps to the Pacific Ocean, 75 kilometres south west of Dunedin.
6) The Yellow River or Huang He, formerly spelled Hwang Ho, is the second-longest river in China after the Yangtze and the sixth-longest in the world at the estimated length of 5,464 kilometers (3,395 mi).
Jökulsá á Fjöllum glacial river - the second longest river in Iceland
Nothing evokes a sense of adventure and mystery like the Amazon. Its sheer size is a wonder: the average discharge of water into the Atlantic Ocean by the Amazon is approximately 175,000 m3 per second, or between one-fifth and one-sixth of the total discharge into the oceans of all of the world's rivers, And stretching approximately 4,000 miles—from its source in the Ucayali-Apurímac river system—across South America, the Amazon River is the second longest river in the world.
The Danube is one of the most important rivers in Europe and the continent’s second longest river after the Volga. The river was one of the long standing frontiers of the Roman Empire and today forms a part of the borders of 10 European countries.