Italian form of Lucas — from lucania; light. A Tuscan city name as well as a saint's name.
Luca ranks 14th among American boys in 2025, with 8,824 born that year. Its best year was 2025, when 8,824 babies were given the name, ranking 14th. The typical living American called Luca is about 5 years old today. It is relatively most common in Rhode Island, where it accounts for 0.86% 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.