From the ancient region of Lydia in Asia Minor — from lydia. A seller of purple cloth in Acts, and the first named European convert to Christianity.
Lydia ranks 92nd among American girls in 2025, with 2,692 born that year. Its best year was 2014, when 3,652 babies were given the name, ranking 84th. The typical living American called Lydia is about 25 years old today. It is relatively most common in Wyoming, where it accounts for 0.42% of births.
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.