or Munychius Portus, (anc. geog.), a village and port of Athens, nearer to the city, less than, and fortified in the same manner with the Piraeus, to the east of which it lay, or between it and the promontory Sunium, at the mouth of the Hissus. Strabo says it was an eminence in form of a peninsular, at the foot of which stood three harbours, anciently encompassed with a wall, taking within its extent the Piraeus and other harbours, full of docks, with the temple of Diana Munychia; taking its name from Munychus, the founder of the temple.

an anniversary solemnity observed at Athens, in honour of Diana, on the 16th of the month Munychion. Cakes were offered on the occasion called apomonia.