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Dictionary of Medieval Names
from European Sources

Gustav m. Tribal name Gaut 'Geat, Goth' + Old Norse stafr 'staff'.

The name of a a 16th C king of Sweden.

Sweden
Old Swedish
1383 Gödzstafs (gen) SRA-vol2 no. 1918
Preview. DO NOT cite as: S.L. Uckelman. "Gustav". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 1. http://dmnes.org/2015/1/name/Gustav.