Cognomen Енгелгардт (Engelgardt 
, Енгелгардт ) , throughout the world, is a rare surname. The last name Енгелгардт is characteristic of Lithuania, where it is a rare surname, Poland, and Russia, where it is a very rare surname. Also, Енгелгардт is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Engelgardt | Germany, Russia, United States, Poland, Lithuania |
| Енгелгардт | Russia |