Surname Iacobi (Jakobi 
, Iacobi 
) , worldwide, is quite a common family name. The surname Iacobi is habitual in Estonia, where it is quite a rare surname, Germany, and Austria. Measured by absolute frequency, this name is the most popular in Germany, the United States, and Austria. Much less frequently, Iacobi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jakobi | Germany, Austria, Australia, Hungary, United States |
| Iacobi | Germany, Italy, Spain, United States, Brazil |
| georg iacobi (b. 1865) |
|
|
| ian iacobi Swedish air force colonel, SE (b. 1916) |
|
|
| arnold iacobi |
|