Isaly has been given to about 169 people in the United States since 1880. It was most common in 2020, which makes it a current name.
Its best year was 2020, when 13 babies were given the name, ranking 8146th. The typical living American called Isaly is about 16 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.