Dok was a small fortress, or little stronghold, near Jericho. It was also called Dagon.
Dok is mentioned in the account of the murder of Simon Maccabeus and two of his sons. Ptolemy son of Abubus entertained them there and then killed them.
Josephus places the site above Jericho. The name survives in Ain Duk, about four miles northwest of Jericho, where there are copious springs. Some nearby foundations may belong to the fortress, though they are more probably remains of a later Templars’ station.