Cognomen Iaquinto (Iaquinto 
) , all over the world, is quite a rare surname. The last name Iaquinto is habitual in Italy, where it is a rare surname, Australia, and Switzerland. Not in comparison with a country's population, this name is the most popular in Italy, the United States, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Iaquinto | Brazil, Italy, Argentina, United States, Australia |
| margaret iaquinto teacher, amateur pilot, folk dancer and amateur radio enthusiast, US (b. 1945) |
|
|
| sal iaquinto American politician in Virginia (born 1968), US (b. 1968) |
|