Last name Трапп (Trapp 
, Trappo 
, Трапп 
) , around the world, is a common cognomen. The family name Трапп is characteristic of Belize, where it is quite a common surname, Germany, and Hungary, where it is quite a rare surname. In absolute terms, it is the most numerous in Germany, the United States, and Brazil. Very seldom, Трапп is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trapp | Germany, Hungary, United States, France, Brazil |
| Trappo | Italy, United States, India, Argentina, France |
| Трапп | Kyrgyzstan, Kazakhstan, Russia, Ukraine |
|
трапп, юлий карлович LT (b. 1814) |
|