Grimstborith (plural Grimstborithn) was the title given to the clan chief of one of the thirteen dwarven clans. In Brisingr, Orik is often referred to as "Grimstborith Orik".
At the time of the Rider War, the Grimstborithn are:
- Hrothgar, then Orik for Dûrgrimst Ingeitum
- Ûndin for Dûrgrimst Ragni Hefthyn
- Hadfala for Dûrgrimst Ebardac
- Gannel for Dûrgrimst Quan
- Gáldhiem for Dûrgrimst Feldûnost
- Thordris for Dûrgrimst Nagra
- Vermund for Dûrgrimst Az Sweldn rak Anhûin[note 1]
- Íorûnn for Dûrgrimst Vrenshrrgn
- Manndrâth for Dûrgrimst Ledwonnû
- Freowin for Dûrgrimst Gedthrall
- Havard for Dûrgrimst Fanghur
- Nado for Dûrgrimst Knurlcarathn
- Hreidamar for Dûrgrimst Urzhad