The Blue Princess is one of the four princesses found in the game, Castle Crashers.
She is captured by the Barbarians and sold to the Frost King. She has blue eyes, and she wears a blue gown as well as a blue hat. In order to rescue her, the player has to defeat the Frost King. After the defeat of the Evil Wizard, she appears at the party in the Barracks, where she seems impressed with a Thief's archery skills.
- She is dressed in the same color as the Blue Knight.
- She is the third princess to be rescued.
- Like the other princesses (Except for [[Orange Princess|the Orange one]), she resembles a member of the Powerpuff Girls: Bubbles