William H. Phelps Sr.

William H. Phelps
Born(1875-06-14)June 14, 1875
New York City, US
DiedDecember 8, 1965(1965-12-08) (aged 90)
Caracas, Venezuela
Alma materHarvard College
Known for239 new taxa
AwardsBrewster Medal 1955
Scientific career
FieldsOrnithology
Doctoral advisorFrank M. Chapman

William Henry Phelps Sr. (June 14, 1875 – December 8, 1965) was an American ornithologist and businessman. One of his sons, William H. Phelps Jr., was also an ornithologist, and collaborated with him. William Phelps was the founder of the William Phelps Ornithological Collection, located in Sabana Grande. This is still the most important private ornithological collection of the world.