H. Jierjian was a Human Starfleet officer in the 22nd century. In 2154, he was listed as a Flight Software officer on the dedication plaque of the Columbia NX-02. (ENT: "Affliction", dedication plaque) In January of 2155, he was listed as a PHALCON officer on directory placards at Starfleet Command's Fleet Operations Center, Sol Sector. His office was located in room #4232. (ENT: "Demons" set artwork) He was named after Enterprise assistant editor Harry Jierjian.