Family name Harwat (Harwat 
) , across the world, is a very rare cognomen. The surname Harwat is characteristic of Poland, where it is a very rare surname, Germany, and Venezuela. Measured by absolute frequency, it is the most numerous in Poland, Germany, and China. More frequently, Harwat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harwat | Poland, China, Venezuela, Germany, United States |