The Theme of Dyrrhachium or Dyrrhachion (Greek: θέμα Δυρραχίου; Albanian: Thema e Durrësit) was a Byzantine military-civilian province (theme), covering the Adriatic coast of modern Albania, and some coastal regions of modern Montenegro.

Bury proposed its creation alongside the themes of the Peloponnese and Cephallenia in the early 9th century, with the historian Jadran Ferluga putting the date of its establishment in the reign of Emperor Nikephoros I (r. 802–811).

[2] In 1040–1041, the troops of the theme, under their leader Tihomir, rebelled and joined the revolt of Peter Delyan.

The city was the main point of entry for trade but also for invaders from Italy, and was ideally placed to control the actions of the Slavic rulers of the western Balkans.

As attested by the Notitiae Episcopatuum and other sources, local episcopal sees in the province were grouped under jurisdiction of the Metropolitanate of Dyrrhachium, that belonged to the Patriarchate of Constantinople.