Fantasy books about mermaids have never lost their allure… and chances are, they never will.
For centuries, mermaids have captured our imagination: fascinating and dangerous creatures suspended between myth and legend, capable of enchanting sailors with their song and luring them toward mysterious fates. From ancient mythology to modern fantasy retellings, these enigmatic beings of the sea continue to mesmerize readers.
In today’s fantasy landscape, mermaids (along with mermen, ocean spirits, and deep-sea monsters) are making a powerful comeback. These stories are often richer and more complex, moving beyond the classic trope of seduction and danger to explore layered characters, unique cultures, and personal struggles.
In this article, I’ll guide you through some of the most anticipated fantasy books about mermaids and sea creatures releasing in 2026… a must-read selection for fans of ocean-inspired worlds, epic adventures, and magical, mysterious storytelling.
5 Mermaid Fantasy Books to Add to Your TBR (YA & Adult)
A Spell for Drowning by Rebecca Ferrier
The people of Portscatho are deeply tied to the sea and its traditions, living alongside spirits, gods, and monsters that inhabit the stormy waters around them. When Kensa and her stepsister discover a dying sea creature on the Cornish coast, Kensa claims the credit, stealing both recognition and the chance to become the village sage’s apprentice.
The role seems to suit her, especially as someone who has always felt like an outsider. But becoming a sage comes at a cost: a life of solitude, with no family of her own and little love from the community she serves. Her only true companion is her mentor, Isotta.
When Isotta falls gravely ill, Kensa is willing to do anything to save her and to secure her place in the village. Even if it means turning to the Bucka, a dark and unfathomable sea god who rules the tides. But such bargains come at a price, and Kensa risks losing everything she swore to protect.
A dark and atmospheric mermaid fantasy that leans into the realm of dark fantasy… definitely one for your wishlist!
The Wicked Sea by Jordan Stephanie Gray
Zephyra, a mermaid longing for freedom, has escaped a dangerous captor… at the cost of her tail. Forced to survive on land through theft and bartering, her fragile freedom doesn’t last long.
Captured and sentenced to death by the powerful and ruthless sorcerer Arion Stone, Zephyra is offered a deal: help him retrieve the heart of the God of Death, hidden in a legendary underwater realm only mermaids can access, and she will be spared.
As their uneasy alliance unfolds, trust becomes as dangerous as the magic that binds them. With Zephyra’s past catching up to her, both must decide whether to rely on each other… or face a fate worse than death.
Year of the Mer by L. D. Lewis
Arielle, the little mermaid of legend, may have found her happily ever after… but her niece Yemi is living a very different story.
Her father, the king of Ixia, was murdered. Her mother is slowly dying from a poisoned wound. And Yemi herself is burdened by the scorn of her people. Raised to defend the kingdom, she is next in line for the throne, yet struggles to contain her anger at how her family has been treated.
When a coup strips her of everything—her crown, her family, and her home—Yemi is left with only one possible ally: Ursula.
Like her grandmother before her, Yemi is tempted to strike a deal with the sea witch. With ancient magic on her side, she could reclaim her throne and protect the woman she loves. But Ursula has been waiting for this moment… and the price she demands may cost Yemi everything.
The Siren by Tomi Adeyemi
When Emery arrives at Dartmouth, she has a plan: keep her scholarship, take her medication, and make sure no one uncovers her past.
Everything changes when she meets Roux, her charismatic brother Eli, and their mysterious circle known as “The Sirens.” Beautiful, powerful, and seemingly untouchable, these women live a life of luxury and exclusivity: one that Emery is drawn to.
Once outsiders, the Sirens have transformed their lives under Roux’s guidance. When Emery is offered a chance to join them, she’s willing to do whatever it takes.
Note: It’s not entirely clear whether “siren” is meant literally or symbolically in this novel. However, the american edition’s design strongly evokes oceanic imagery, which makes it a fitting addition to this list of ocean-themed fantasy books.
The Trident and the Pearl by Sarah K. L. Wilson
Queen Coralys rules the Kingdom of the Five Isles—until a devastating catastrophe destroys her lands and kills her husband. In desperation, she begs the gods for salvation.
They answer, but at a cruel cost: she must marry the first man who steps onto her dock.
Expecting a noble prince, she instead finds a rough, foul-smelling fisherman. Bound by her oath, Coralys marries him and sets sail on a fragile boat, determined to take revenge on the gods who betrayed her.
What she doesn’t know is that the fisherman is actually the sea god in disguise, with plans of his own.
As war looms and both their lives hang by a thread, Coralys and her unlikely husband must work together, despite their mutual distrust, to save what remains of their worlds.
(I haven’t read many mermaid fantasy novels yet, but I have to admit… this one, especially with its stunning cover, instantly caught my attention.)
