Susy has been given to about 1,217 people in the United States since 1880. It was most common in 1962, which makes it a boomer-era name.
Its best year was 1962, when 32 babies were given the name, ranking 2108th. The typical living American called Susy is about 49 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.