Zenodorus (Greek: Ζηνόδωρος) was the ruler of a small principality in the vicinity of Damascus described by Josephus as the "house of Lysanias", 23-20 BCE.
[1] He gained control, on lease we are told, of some of his father's territory (confiscated when his father had been executed by Mark Antony), but it is not clear exactly what his territory was for Josephus only gives us information concerning areas south of Damascus (Ulatha and Paneas, both, we are told, west of Trachonitis), while the center of Lysanias's realm was north-west of Damascus.
He may in fact have held the lease on his territories as far back as the time of his father's execution (36 BCE), doing the work of administering the region while initially paying rent to Cleopatra, though we only have Josephus's indications to follow.
The Damascenes turned to the Roman governor to relieve their sufferings, which led Augustus to give control of the Trachonitis to Herod the Great, along with the task of bringing order to the area.
Zenodorus went to Rome in an attempt to bring charges against Herod for the zealousness of his efforts in the Trachonitis, but returned, not having achieved anything.