The Mounichia was an Athenian festival honoring Artemis in her aspect as Mounichia, celebrated at her temple in Piraeus on the sixteenth of Mounichion. The festival featured a procession with a maiden leading a bear, sacrifices of goats, and amphiphontes—round cakes decorated with small candles symbolizing the full moon. It commemorated Artemis's aid at the Battle of Salamis. In poetry, Mounichia represents lunar worship, maritime protection, and feminine divine power, appearing in works exploring Artemis's multifaceted nature, naval victory, and the integration of religious devotion with Athenian military triumph.

Mounichia honored Artemis Mounichia at Piraeus with processions, sacrifices, and distinctive round cakes decorated to resemble the full moon. The festival's maritime location emphasizes Artemis's protection of harbors and sailors. Understanding Mounichia helps illuminate Artemis's coastal associations and her worship in Athens's port. The moon-shaped cakes demonstrate ritual attention to Artemis's lunar connections and how ritual foods could embody divine attributes through symbolic representation.