Waldo (surname) explained
Waldo is the surname of:
- Clarence Abiathar Waldo (1852 - 1926), American mathematician, author, and educator
- Craig Richard Waldo (born 1971), American psychologist & LGBTQ+ activist
- Daniel Waldo (1762 - 1864), veteran of the American Revolutionary War, missionary and U.S. House clergyman
- Daniel Waldo (Oregon pioneer) (1800 - 1880), American legislator in the Provisional Government of Oregon
- Dr. Dwight B. Waldo (1864–1939), first president of Western Michigan University
- Dwight Waldo (1913 - 2000), American political scientist
- Edward Hamilton Waldo, birth name of American science fiction author Theodore Sturgeon (1918 - 1985)
- George E. Waldo (1851 - 1842), American politician
- Janet Waldo (1920–2016), American actress and voice artist
- Jim Waldo, computer scientist and software architect
- John B. Waldo (1844 - 1907), jurist and conservationist in Oregon, United States
- Katita Waldo (born 1968), Spanish ballet dancer and ballet master
- Octavia Waldo (born 1929), American writer
- Peter Waldo (1140 - 1218), founder of a Christian sect called the Waldensians
- Rhinelander Waldo (1877 - 1927), former U.S. Army captain, Fire and later Police Commissioner of New York City
- Samuel Waldo (1696 - 1759), Massachusetts land speculator, soldier and political figure
- Samuel Lovett Waldo (1783 - 1861), American painter
- William Waldo (California politician) (1812 - 1881)
- William Waldo (Oregon politician) (1832 - 1911)
Fictional characters
