Byzantine Syrmia may refer to:
Pannonia (Byzantine province) (567-582), first rule of the Byzantine Empire in the region of Syrmia Sirmium (theme), second rule of the Byzantine Empire in the region of Syrmia, from c. 1018 to c. 1071 Byzantine Syrmia (1167-1180), third rule of the Byzantine Empire in the region of Syrmia
See also Syrmia (disambiguation) Byzantine (disambiguation) Duchy of Syrmia (disambiguation)