Spanish form of Matthew, from Hebrew Mattityahu — gift of god. The most common Spanish-language boy's name in the United States.
Mateo ranks 8th among American boys in 2025, with 11,057 born that year. Its best year was 2024, when 11,355 babies were given the name, ranking 7th. The typical living American called Mateo is about 7 years old today. It is relatively most common in Nevada, where it accounts for 0.90% 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.