Otgar, Otger or Odgar is a Germanic masculine given name (from Proto-Germanic *Audawakraz). It may refer to:

(fl. 8th century), missionary Autchar (fl. 8th century), Frankish nobleman Otgar of Mainz, archbishop (826–847) , bishop of Eichstätt (847–880) Hoger (died 906), abbot and music theorist Otgar, founding abbot of Saint-Pons-de-Thomières (937–940) Otgar, bishop of Speyer (962–970) , Catalan count (c. 862 – c .872) Otger Cataló, figure of Catalan legend

See also Hoger Ogier (disambiguation)