Xenagoras (Ancient Greek: Ξεναγόρας) was the name of a number of men of classical antiquity:
Xenagoras of Halicarnassus, companion of the Achaemenid commander Masistes
Xenagoras (historian), a historical writer, likely of the 2nd century BCE
Xenagoras, historian, and father of the historian Nymphis. Possibly the same man as the above. If so, he must have lived in the early part of the second century BCE.
Xenagoras (geometer), who wrote in the ancient world about the heights of mountains
Xenagoras, an archon of Delphi in late 1st century BCE.
Xenagoras, son of Phoinix, and Xenagoras, son of Xenagoras, two (presumably related) men recorded as providing a sizable donation to the state on the epidosis of Kalymna (modern Kalymnos).