William Phelps
William Phelps is the name of the following people:
- William Phelps (settler) (around 1599–1672), English-American settler
- William Henry Phelps (1875–1965), American ornithologist
- William Henry Phelps, Jr. (1902–1988), Venezuelan ornithologist
- William Lyon Phelps (1865–1943), American literary scholar and author
- William Wallace Phelps (1826–1873), American politician
- William Walter Phelps (1839-1894), American politician
