Sunicas (Greek: Σουνίκας) was a Hun who served in the Byzantine military during the Iberian War, in the early reign of Emperor Justinian I (r. 527–565).
According to Zacharias of Mytilene, Sunicas was a Hun who fled to the Byzantine Empire, where he was baptized.
By 527, he was an officer stationed at the fortress of Dara in Mesopotamia along with Simmas, and defended it against Sassanid Persian attacks.
Although they repelled the successive Persian attacks, the remainder of the army was defeated and forced to withdraw.
Sunicas and his men, mostly infantry, nevertheless continued to fight, preventing the Sassanid Persians from pursuing the defeated Byzantines.