Dean has been given to about 195,844 people in the United States since 1880. It was most common in 1961, which makes it a boomer-era name.
Dean ranks 125th among American boys in 2025, with 2,882 born that year. Its best year was 1961, when 4,967 babies were given the name, ranking 84th. The typical living American called Dean is about 59 years old today. It is relatively most common in South Dakota, where it accounts for 0.36% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.