| Term | Definition |
| Scyld Scefing | mythological founder of Danish Royal House |
| Danes | Scyldings |
| Beowulf the Dane | son of Scyld Scefing; grandfather of Hrothgar |
| Hrothgar | king of Danes; son of Healfdene; brother of Heorogar and Halga; father of Freawaru |
| Heorot | hall that Hrothgar built; burnt down during Danish-Heathobard feud |
| Grendel | the monster that ravaged Heorot; descended from Cain |
| Cain | eldest son of Adam; murderer of Abel; forbear of Grendel |
| Abel | son of Adam; murdered by brother, Cain |
| Geat | Beowulf's tribe; lived in southern Sweden; enemies of the Swedes |
| Hygelac | Beowulf's uncle; king of the Geats; husband of Hygsd; father of Heardred |
| Ecgtheow | father of Beowulf the Geat |
| Beowulf the Geat | hero of poem; son of Ecgtheow; nephew of Hygelac |
| Wulfgar | a chieftain of the Wendels; an official of the court of Hrothgar |
| Unferth | son of Ecglaf; spokesman of Hrothgar; lent his sword to Beowulf to fight Grendel's mother |
| Breca | son of Beanstan; king of the Brondings; face Beowulf in swimming contest |
| Wealhtheow | wife of Hrothgar; mother of Hrethric & Hrothmund |
| Sigemund | legendary Germanic hero; son of Waels; fahter & uncle of Fitela |
| Hrothulf | nephew of Hrothgar; son of Halga |
| Hnaef | Danish chieftain; killed by Finn's men during battle; brother of Hildeburh |
| Hildeburh | Danish princess; daughter of Hoc; wife of Finn; sister of Hnaef |
| Finn the Frisian | king of Frisians; ruler of Jutes; son of Folcwafa; husband of Hildeburh |
| Aeschere | elder brother of Yrmenlaf; killed by Grendel's mother |
| Hrunting | Unferth's sword, that he lent to Beowulf to fight Grendel's mother |
| Ongentheow | king of Swedes; father of Onela & Ohthere; killed Geat king (Haethcyn); killed by Eofor |
| Swede | lived in central Sweden; enemies of Geats |
| Freawaru | daughter of Hrothgar; married Ingeld (prince of Heathobards) |
| Ingeld the Heathobard | prince of Heathobards; son of Froda; married Freawaru |
| Hondscioh | Geat; one of Beowulf's followers; killed by Grendel in Heorot |
| the Worm | the dragon |
| Haethcyn | king of the Geats; killed by Swedish king |
| Herebeald | Geat prince; eldest son Hrethel; killed accidentally by Haethcyn |
| Hrethel | Geat king; father of hygelac; grandfather of Beowulf |
| Wiglaf | son of Weohstan; came to aid of Beowulf during battle w/ Dragon |
| Waegmunding | family of Beowulf the Geat; related to the Geat royal house |
| Hronesness | headland on the Geat coast where Beowulf's funeral tumulus was built |