In the entire world, Grettir (Grettir 
) is an extremely rare male given name.
| VARIANT | COUNTRY |
|---|---|
| Grettir | United States, Canada |
| grettir björnsson Icelandic musician, accordionist, IS (b. 1931) |
|
|
| grettir algarsson Commanded expedition to Arctic in 1925, CA |
|
Alapa, Hammer, Gautason, Hreinsson, Asmundsson, Bjornsson, Olafsson, Jóhannesson, Sigurjónsson, Gunnarsson, and Haraldsson