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Test your knowledge with the US Longest Rivers Quiz. Can you name the 100 longest rivers in the US?

Do abbreviations or alternate spellings count?

Yes. Most quizzes allow common abbreviations, alternate spellings, and short forms. Try typing just the first few letters — if it matches, it will autofill.

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US Longest Rivers

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Name the 100 longest rivers in the US. Markers are at the source of the river. Part of the river may not be in the US, but the entire length is still counted.

Enter guesses above to begin.

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dpm

2 years ago

Where is the Wabash River?

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darin

2 years ago

Reply to dpm

missed it and one other – both added (sources differ for this quiz)

atavoidirc

2 years ago

the world version has markers at the mouths, while this has markers at the source

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darin

2 years ago

Reply to atavoidirc

that’s true 🙂

atavoidirc

2 years ago

Reply to darin

shouldn’t it be consistent

revelnyet

2 years ago

Reply to atavoidirc

I think the source is better as two rivers may share a mouth (e.g. the source of Missouri is officially defined as the confluence of the Jefferson and Madison rivers, which means the Jefferson and Madison have the same mouth).

It’s also true outside of America – the Blue and White Nile, or the Biya and Katun which form the Ob, for instance

Related content: The 50 US States and their Rivers

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