Gregory Taronites () was a Byzantine governor of the theme of Chaldia (modern north-eastern Black Sea coast of Turkey) who rebelled against Emperor Alexios I Komnenos in 1103/4 and governed his province as a virtually independent ruler until his defeat in battle in 1106/7. He was then imprisoned for some time in the Prison of Anemas, before obtaining an imperial pardon. Some scholars have proposed an identification with Gregory Gabras, but this is disputed.