Oswaldo has been given to about 5,902 people in the United States since 1880. It was most common in 2006, which makes it a millennial-parent name.
Its best year was 2006, when 461 babies were given the name, ranking 549th. The typical living American called Oswaldo is about 23 years old today. It is relatively most common in Texas, where it accounts for 0.00% of births.
Source: US Social Security Administration, national and state name files, 2025 release. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.