Barth has been given to about 470 people in the United States since 1880. It was most common in 1955, which makes it a midcentury name.
Its best year was 1955, when 26 babies were given the name, ranking 1504th. The typical living American called Barth is about 68 years old today.
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.