Seo Yoo Na (Korean: 서유나), born on December 30, 1992, is a South Korean female entertainer. She is known by the stage name Yuna (Korean: 유나, English: Yuna, Angel name: Yunaria). Her name is often transliterated as Seo Yu-na, Seo Yu-na, Seo Yoo-nai, or Seo Yoo-na. She was a member of the FNC Entertainment girl group AOA, serving as the main vocalist and keyboardist.
