What does Amadeo mean?
Amadeo is an unusual first name for men but a very prominent surname for both adults and children (#34399 out of 150436, Top 23%). (2000 U.S. Census)
Below is a graphed comparison of the popularity of the boy name Amadeo and affiliated names. The only prominent variation form of Amadeo (#unlisted) is Amado. Adoption of these boy names reached its peak during 1950-1959 (usage of 0.122%) and is now less. (Top 1000 Birth Names Statistics, 2014)
A recommended similar baby name is Amad. Like Amadeo, this name is not frequently used.