Dion has been given to about 20,164 people in the United States since 1880. It was most common in 1970, which makes it a boomer-era name.
Its best year was 1970, when 607 babies were given the name, ranking 344th. The typical living American called Dion is about 41 years old today. It is relatively most common in Maryland, where it accounts for 0.01% 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.