Halcyon (Ancient Greek: Ἀλκυών) is a short dialogue attributed in the manuscripts to both Plato and Lucian, but the work is not by either writer.
For comparison, Socrates refers to a bad storm that recently took place and was immediately followed by a sudden calm.
Socrates concludes by resolving to pass the myth down to his children as it was communicated to him, and especially with the hope that it will inspire his wives Xanthippe and Myrto to remain devoted to him.
As is stated at its conclusion, the conversation is conducted in the port of Phaleron, also the narrative setting of Plato's Symposium.
The text was included in the first-century Platonic canon of Thrasyllus of Mendes but had been expunged prior to the Stephanus pagination and is thus rarely found in modern collections of Plato although it appears in Hackett's Complete Works.