Snow Sisters

Elsanna is the family ship between Elsa and Anna from the Disney and Once Upon A Time fandoms.

Frozen
As children, Elsa and Anna were the best of friends, up until Elsa had accidently hit Anna with her ice magic.

Frozen Fever
After years of being separated from each other, Elsa was deturmed to make Anna's birthday the best one ever, as a way to make up for the ones she had missed.

Olaf's Frozen Adventure
When the sisters came to the conclusion that they don't have a family tradition, due to the long years where Elsa kept herself away from Anna, Elsa apodized to her sister for being the reason that they don't have one.

Fanon
While Elsa and Anna are sisters, there are fans who treat Elsanna as a femslash ship.

While Disney and Once Upon A Time have their own versions of the two sisters, their ship in both fandoms are of the same name and both the Disney film and the live-action TV series show the sisters' love for each other. As well as struggles that would hinder their bond before it becomes stronger.

Fandom
FAN FICTION

TUMBLR

DEVIANTART
 * Elsa-x-Anna club on DeviantART
 * Anna-X-Elsa club on DeviantART
 * Sisters-of-Arendelle club on DeviantART
 * ElsannaShippers club on DeviantART

Trivia

 * In the Disney film, Ralph Breaks the Internet, Elsa and Anna appear as online versions of themselves known as "netizens", the inhabitants of the digital made world that lies within the real-life internet. Where they are two of the fourteen Disney Princesses that are from the expo-like Disney website, Oh My Disney.