Thérèse Su was a female Human serving in Starfleet in the late 24th century.

As of 2380, Commander Su served as First Officer of the USS Io under Captain T'Vrea. In August of that year, she appeared as a panelist on Illuminating the City of Light, to discuss the developing relations between the Federation and the recently encountered Trinni/ek. (ST novel: Articles of the Federation)