Praxagoras of Athens was a pagan historian in the early 4th century AD.

He was born in Athens

Athens

Athens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...

 and wrote three historical works, which are all lost: a history of the Kings of Athens, a history of Alexander the Great, and a panegyric biography of the emperor Constantine. A few fragments of the biography of Constantine are preserved in the Bibliotheca of Photius (cod. 62).

Dindorf's 1870 Minor Greek Historians Praxagoras's fragments start on page 439