Birth Name:Im Yoon Ah
Stage Name:Yoona
Nickname:Him Yoona,Yoongie,Yoong Oppa,Charming girl
Birthday:May 30,1990
Birth Place:Seoul,South Korea
Role:Vocalist,Lead dancer
Trivia:Yoona is considered the group's biggest prankster.She has appeared as the lead actress in dramas You Are My Destiny,Cinderella Man,Love Rain,Prime Minister And I.