Peter (Greek: Πέτρος; died 977) was a Byzantine eunuch general. Originally a servant of the powerful Cappadocian Phokas family, he was raised to high military office (stratopedarches of the East) under Emperor Nikephoros II Phokas, leading the capture of Antioch and the subjugation of Aleppo in 969. Under John I Tzimiskes, he fought as a senior commander against the Rus' in 970–971, while after Tzimiskes' death he led the loyalist forces against the revolt of the general Bardas Skleros in Asia Minor, falling in battle in autumn 977.