Franz Dölger (Kleinwallstadt, 4 October 1891 – Munich, 5 November 1968) was a German Byzantinist.
He is most notable for his crucial contributions to Byzantine diplomatics, and as the chief editor of the journal Byzantinische Zeitschrift from 1931 to 1963.
A member of the Bavarian Academy of Sciences and Humanities, he received honorary doctorates from the universities of Athens, Thessaloniki and Sofia.