Ellaria Sand is a fictional character in the A Song of Ice and Fire series of high fantasy novels by American author George R. R. Martin and its television adaptation Game of Thrones, where she is portrayed by Indira Varma.

After the death of her lover in a duel at the hands of Ser Gregor Clegane, she is sent into deep mourning, though she pushes for Oberyn's brother Doran Martell to sue for peace, seeking an end to the cycle of revenge.

However, in stark contrast to Arianne, Ellaria is portrayed as a ruthless and vengeful killer who seeks to murder the innocent Myrcella Baratheon, instead of crowning her to oppose Cersei and Tommen, and then slays Oberyn's remaining family so that she can seize power in Dorne.

She is not a point-of-view character; rather, her actions are witnessed and interpreted through the eyes of other people, such as Tyrion Lannister, Arianne Martell, and Areo Hotah.

[4] Oberyn wants Ellaria to sit with him at Joffrey Baratheon's wedding, causing trouble when Olenna Tyrell calls her "the serpent's whore".

Doran sends her back to her father, Lord Harmen Uller of Hellholt with her youngest daughter Loreza Sand.

[7][8] She was also nominated, along with the rest of the cast for Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series in 2016.

[10] Ellaria soon learns that Jaime Lannister is sailing for Dorne, planning to rescue his daughter Myrcella, betrothed to Doran's son, Trystane.

When Jaime arrives at the Water Gardens, the Sand Snakes attack him and Bronn, but the skirmish ends with all arrested by Martell guards.

Euron drags the two through the streets of King's Landing where they are jeered by the smallfolk for their roles in murdering Myrcella and the Martells, and presents them before Cersei in the Red Keep.