William Lewis Herndon was an American naval officer and explorer. In 1851 he led a United States expedition to the Valley of the Amazon, and prepared a report published in 1854 and distributed widely as Exploration of the Valley of the Amazon.
- Occupation
- explorer, military officer, traveler, cartographer
- Citizenship
- United States
- Born
- October 25, 1813
- Died
- September 12, 1857
