Centurion Rezek was a Romulan military officer in the 2260s.

In 2267, Rezek manned the tactical station aboard the IKS Kretoq when it faced the USS Defiant in the Alamedus system while testing the ship's new cloaking device. Later that year, Rezek was still aboard the Kretoq during its aborted attack on Theta Cobrini V and subsequent combat with Klingon warships. (ST novella: The First Peer)