Pothos Argyros or Argyrus (Greek: Πόθος Ἀργυρός; Italian: Potone Argiro or Poto Argiro) was a Byzantine commander, who served as the catepan of Italy during the eventful years of 1029 to 1031. Pothos is first mentioned in the history of John Skylitzes in c. 1026/27, or perhaps still under Basil II (r. 976–1025), as a commander in the eastern frontier, when he captured the Arab chieftain , ruler of the disputed border area of near Antioch. Nasr succeeded in being set free after promising assistance to Pothos' superior, the doux of Antioch, Michael Spondyles.