Obodas I (Arabic: عبيدة Ubaidah) was King of the Nabateans from 96 BC to 85 BC.
He was the successor of Aretas II, from whom he inherited the war with the Hasmonean kingdom. He defeated them around 93 BC on the Golan Heights. Then he ambushed Alexander Jannaeus near Gadara, just east of the Sea of Galilee. Using camel cavalry, he forced Jannaeus into a valley where he completed the ambush thereby getting revenge for the Nabateans' loss of Gaza.Moab and Gilead, two mountains east of the Dead Sea and the Jordan, were returned.
Around 86 BC the Seleucid ruler, Antiochus XII Dionysus invaded Nabatea. During the Battle of Cana, Antiochus was slain and his demoralized army perished in the desert. The Nabataeans, seeing how Obodas defeated both the Hasmoneans and the Greeks, started to venerate Obodas as a god.
Obodas was buried in the Negev, at a place that was renamed in his honour, Avdat. After his death Obodas was worshiped as a deity. He was succeeded by his brother Aretas III.