Dictionary of Medieval Names
from European Sources

Thora f. Old Icelandic Þórr, the name of the god of thunder, deriving from Proto-Germanic *þunraz 'thunder'.

The name of an 11th C queen consort of Norway.

Thora was originally a nickname of any of various Old Icelandic names beginning with Þórr-, but very quickly became used as an independent, stand-alone name.

Sweden
Middle Norwegian
1383 Thora SRA-vol2 no. 1915
Cite as: J. Uckelman, S.L. Uckelman. "Thora". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Thora.