Lydiann has been given to about 478 people in the United States since 1880. It was most common in 2011, which makes it a millennial-parent name.
Its best year was 2011, when 20 babies were given the name, ranking 6477th. The typical living American called Lydiann is about 17 years old today. It is relatively most common in Pennsylvania, where it accounts for 0.01% 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.