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Dictionary of Medieval Names
from European Sources

Osbern m. Old English ōs, Old Norse áss, óss 'god' + Old English bera, *beorn, Old Norse bjǫrn 'bear'.

Scotland
Latin
c1100 Osberno (abl) ESC XX; c1118 Osberni (gen) ibid. XXXII
Sweden
Old Swedish
1383 Æsbiörn SRA-vol2 no. 1911
Cite as: S.L. Uckelman. "Osbern". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Osbern.