Family name Mastromatteo (Mastromatteo 
) , throughout the world, is quite a rare cognomen. The family name Mastromatteo is habitual in Italy, where it is quite a rare surname, Uruguay, where it is a rare surname, and Australia. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and Canada. Much less frequently, Mastromatteo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mastromatteo | Australia, Italy, Canada, United States, Argentina |
Mastromattéo, and Мастроматтео
|
giuseppe mastromatteo Italian photographer, IT (b. 1970) |
|
| ernest mastromatteo Canadian occupational physician, CA (b. 1923) |
|
|
| nicholas mastromatteo American luger (1933-2018), US (b. 1933) |
|
|
|
gabe mastromatteo Canadian swimmer, CA |
|
| juan mastromatteo IT (b. 1950) |
|
|
| joseph lawrence mastromatteo Ph.D. Ohio University 2014 |
|
|
| scott mastromatteo researcher (ORCID 0000-0002-3551-2247) |
|
|
| giovanni mastromatteo researcher |
|
|
| elisa mastromatteo Uruguayan writer, UY (b. 1988) |
|
|
| alessandro mastromatteo (b. 1980) |
|