Last name Gronn (Gronn 
) , throughout the world, is a rare cognomen. The family name Gronn is characteristic of Norway, where it is quite a rare surname, Latvia, where it is a rare surname, and Australia. In absolute terms, this name is the most popular in Norway, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Gronn | Norway, South Africa, Australia, United States, Latvia |
| peter gronn British educationalist (b. 1944) |
|