Meaning and name origin
Amadeo \a-ma-deo\ as a boy's name is of Latin origin, and the meaning of Amadeo is "God's love". Amadeo is a variant of Amadeus (Latin): a saint's name that became widely familiar as Wolfgang Mozart's middle name due to the 1984 movie "Amadeus" about the famed composer.
Amadeo is not a popular first name for males but a very popular surname or last name for all people (#29382 out of 88799, Top 33%) (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Amadeo and its variant forms. The only popular variation form ranked in the Top 1000/100 is Amado. (2014 statistics).