Mandy has been given to about 42,603 people in the United States since 1880. It was most common in 1978, which makes it a boomer-era name.
Its best year was 1978, when 3,124 babies were given the name, ranking 96th. The typical living American called Mandy is about 46 years old today.
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.