Diego has been given to about 126,405 people in the United States since 1880. It was most common in 2006, which makes it a millennial-parent name.
Diego ranks 158th among American boys in 2025, with 2,356 born that year. Its best year was 2006, when 8,423 babies were given the name, ranking 56th. The typical living American called Diego is about 18 years old today. It is relatively most common in New Mexico, where it accounts for 0.32% 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.