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The Siren is a female monster from Classical Mythology, best known for using its hypnotially alluring voice to lure men to their deaths on jagged rocks. Due to various conflicting descriptions, sirens have often been confused with or even combined with the harpy or the mermaid in many /tg/ media.


The siren first appeared in Advanced Dungeons & Dragons as the Sirine; a nymph with a deep spiritual connection to the sea. Described as often having yellow-green, green or blue skin and silver or dark green hair, they are an isolationist and contemplative species, caring for little more than to find themselves a secluded den close to the sea or on the sea where they can sit, think and sing. They want nothing from society and contribute nothing to it, except maybe misery by their lashing at out people who disturb them. They can cast Charm Person 1/day via their song, causing it to affect every listener within 30 feet, and can use fog cloud, polymorph self, and improved invisibility 1/day each; all of their spell-like abilities are cast as if by an 11th level mage. They can also reduce anyone foolish enough to let them touch them to babbling imbeciles, dropping their Intelligence down to 2.

Sirines would later make their way to 3.5 in the Monster Manual 2.

Ravenloft has its own breed of siren; a zombie mermaid who uses illusions and a hypnotically beautiful song to lure men in for lunch.

In the pdf Plane Shift: Ixalan siren are a playable race.

  • Ability Score Increase: Your Charisma score increases by 2.
  • Size: Sirens stand about 5 to 6 feet tall, but their bodies are slender and their bones partially hollow to facilitate their flight. Your size is Medium.
  • Speed: Your base walking speed is 25 feet.
  • Flight: You have a flying speed of 30 feet. You can’t use your flying speed while you wear medium or heavy armor.
  • Siren's Song: You know the Friends cantrip and can cast it without material components.
  • Languages: Common and Siren


In Pathfinder, the Siren is a distant relative of the Harpy, appearing as a huge female bird of prey with the head of a gorgeous human woman. They are natural oracles and wield powerful enchantment spells through their voices. Relying on human men to reproduce, unlike their man-eating cousins, they are actually devoted spouses who fall passionately in love with the men they select; sirens have been known to literally die of grief if they are separated from a mate they have selected.


Naturally, the siren has appeared as a monstergirl in many, many depictions. That said, they re usually just portrayed as either mermaids or harpies with bard-like magical powers; even the Monster Girl Encyclopedia settled for just depicting its siren as a pop idol-themed harpy.