Dictionary of Medieval Names
from European Sources

Theudo m. Gothic þiuda 'people, folk' used as a standalone name, or a pet form of any of various names beginning with this element.

France
Latin
814 Teodo (nom) StVdM-II F20; c823 Teodo (nom) irminon-vol2 9, CE; 942 Teuddi (gen) St-Bernard-Romans 131; 1079x1101 Teudone (abl) CartStPC XXXVII; 1107 Teudo (nom) ibid. V
1158x1170 Tecelinus (nom) clairvaux-12thc 138; 1179 Tescelino (nom) ibid. 177
Italy
Latin
1092 Teutio (abl) RCI-Cam1 566, Teuzi (gen) ibid. 565, Teuzo (nom) ibid. 565; 1099 Teutio (abl) ibid. 624; 1100 Teuzi (gen) ibid. 629, Teuço (nom) ibid. 630
Switzerland
Latin
1161 Tecelinus (nom) CartHaut 10
Cite as: S.L. Uckelman. "Theudo". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Theudo.