Cognomen Trappa (Rappu 
, Trampa 
, Trappa 
) , throughout the world, is quite a rare surname. The last name Trappa is habitual in Paraguay, where it is quite a rare surname, Ireland, and Estonia. In absolute terms, it is the most numerous in Germany, the United States, and Paraguay. Much less frequently, Trappa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rappu | Sweden, Bolivia, Estonia, Finland, India |
| Trampa | Romania, Serbia, United States, India, Greece |
| Trappa | United Kingdom, Italy, United States, India, Argentina |
| Trappe | Germany, United Kingdom, Ireland, Paraguay, United States |
Mr, Achref, Karina, Rosana, Robert, Daniel, Norene, Hilary, Silvina, Antonio, Camillo, Rossana, Roberto, Rolando, Gabriel, Nanette, Nicolas, Heather, Houssem, Vanessa, Oussema, Patricia, Arrigo, Sergio, Simona, Silvia, Ana, Nae, Anna, Adam, Civa, Dani, Gabe, John, Tina, Yung, Rossella, Maria, Motez, Aymen, Carla, Clara, Lucio, Jacky, Elisa, Elena, Issam, Marina, Marco, and Danielle