Family name Slangi (Slangi 
, Slange 
) , across the world, is a very rare last name. The family name Slangi is habitual in Netherlands, where it is a rare surname, South Africa, where it is a very rare surname, and Germany. Very seldom, Slangi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Slangi | South Africa |
| Slange | Germany, Netherlands, Spain, Brazil, South Africa |