Es una cantante y actriz de Corea del Sur. Es bailarina principal, sub-rapera, sub-vocalista y visual en el grupo femenino de K-pop, Girls' Generation, que se convirtió en una de los artistas más vendidos en Corea del Sur y uno de los grupos de chicas de Corea del Sur más populares en todo el mundo. También es miembro de la segunda subunidad de Girls' Generation, Oh!GG.

Im Yoon-ah (Hangul: 임윤아; born May 30, 1990), best known by her stage name Yoona, is a South Korean singer and actress. She is a lead dancer, sub-rapper, sub-vocal, and the visual in K-pop girl group, Girls' Generation, as well as a member of Girls' Generation second subunit Oh!GG, which went on to become one of the best-selling artists in South Korea and one of South Korea's most popular girl groups worldwide.

Apart from her group's activities, Yoona has participated in various television dramas, notably You Are My Destiny (2008), which marked her career breakthrough and earned her the Best New Actress awards at the 23rd KBS Drama Awards and the 45th Baeksang Arts Awards. She has since achieved further public attention and acting acclaim with a variety of role-types in Love Rain (2012), Prime Minister & I (2013), The K2 (2016), and The King in Love (2017). Her film work includes Confidential Assignment (2017) and Exit (2019), both of which are among the highest-grossing films in South Korea, the latter being her first leading role. On May 30, 2019, Yoona celebrated her 29th birthday (30th in Korean age) with the release of her debut extended play A Walk to Remember, charting at number three on South Korea's Gaon Album Chart.

The success of Yoona's music and acting careers have led her to various CF deals, notably long-term collaborator Innisfree, and have established her as a top idol-actress of Hallyu.

林允儿（Yoona），1990年5月30日出生于韩国首尔永登浦区，韩国女歌手、演员、主持人，女子演唱团体少女时代成员之一。

2002年，林允儿参加韩国SM娱乐有限公司的选秀而进入SM公司成为旗下练习生。2007年8月5日，以演唱团体少女时代成员身份正式出道。2008年主演情感剧《你是我的命运》获得第45届韩国百想艺术大赏电视剧类最佳新人女演员奖和人气女演员奖。2009年主演励志爱情剧《乞丐变王子》，凭借该剧获得第46届韩国百想艺术大赏电视剧类人气女演员奖。2010年加入SBS电视台综艺节目《家族诞生2》并担任固定主持人。

2011年6月，随组合发行首张日文专辑《Girls Generation》；10月19日，随组合发行第三张正规专辑《The Boys》。2012年，主演了爱情剧《爱情雨》。2013年，凭借爱情剧《总理和我》获得了KBS演技大赏迷你系列剧女子部门优秀演技赏 。2014年2月24日，随组合发行迷你专辑《Mr.Mr.》。2015年8月20日，随组合发行第五张正规专辑《Lion Heart》。2016年3月11日，公开首张个人单曲《德寿宫石墙路的春天》；4月3日，主演的古装剧《武神赵子龙》首播，在剧中首次饰演两个角色。2017年，因出演动作电影《共助》而获得了第53届韩国百想艺术大赏电影部门最佳人气女演员；7月17日，领衔主演的古装爱情剧《王在相爱》首播。2019年5月30日，发布个人特别专辑《A Walk to Remember》。

Im Yoon-Ah, comumente estilizada como Yoona, é uma popular cantora pop sul-coreana, dançarina, atriz, modelo e porta-voz. Ela é membro do grupo feminino coreano Girls' Generation e é conhecida como a garota central, dançarina principal e subvocalista do grupo. Yoona fez sua estreia como cantora junto com Girls' Generation em 5 de agosto de 2007. Ela fez sua estreia como atriz antes de sua estreia em Girls Generation no drama coreano de 2007, 9 Ends, 2 Outs.

Tendo aparecido em CFs antes mesmo de sua estreia no Girls' Generation, o sucesso da carreira musical e de atuação de Yoona a levou a endossar individualmente quase 40 marcas internacionalmente, notadamente a colaboradora de longa data Innisfree, incluindo dez somente em 2019. A CNN a creditou como 'um dos nomes conhecidos na região Ásia-Pacífico', o que ajudou as marcas de beleza coreanas a se tornarem populares na China.

Ela se formou em estudos teatrais e se formou na Universidade Dongguk em fevereiro de 2015, recebendo um prêmio pelo conjunto de sua obra na cerimônia de formatura.

YoonA est une idole, mannequin et actrice sud-coréenne. Elle fait partie des So Nyeo Shi Dae (Girls' Generation).