John Bogas was a 10th-century Byzantine general. In 917 he was sent to the Pechenegs to form an alliance against Bulgaria but although he was able to bribe some of their tribal leaders, the Byzantine admiral Romanus Lecapenus did not manage to ferry them across the Danube. In the same time the whole Byzantine army was destroyed in the battle of Anchialus by the Bulgarians under Emperor Simeon the Great. After their return to Constantinople, Bogas and Romanos were among the nobles who were blamed for the defeat.