is a fictional character from Square Enix's Final Fantasy series. She was first introduced as the female protagonist and one of the main playable characters of the 2001 role-playing video game Final Fantasy X, appearing as a summoner embarking on a journey to defeat the world-threatening monster Sin alongside her companions, including the male protagonist Tidus. Yuna reappears in Final Fantasy X-2, where she becomes the protagonist, searching for a way to find Tidus two years following his disappearance. Yuna has also been featured in other Square Enix games, notably Dissidia 012 Final Fantasy.