Joseph Bringas (Greek: Ὶωσῆφ Βρίγγας, romanized: Iosif Bringas) was an important Byzantine eunuch official in the reigns of Emperor Constantine VII (r. 945–959) and Emperor Romanos II (r. 959–963), serving as chief minister and effective regent during the latter. Having unsuccessfully opposed the rise of Nikephoros Phokas to the imperial throne in 963, he was exiled to a monastery, where he died in 965.