Family name Tersh (Tersh 
) , around the world, is a very rare last name. The last name Tersh is habitual in Lithuania, where it is a rare surname, Sweden, and South Africa, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Sweden, Lithuania, and the United States. More frequently, Tersh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tersh | South Africa, Sweden, Lithuania, United States, India |