Birth name: 임윤아

Also known as: Yoona, YoonA, Deer Yoona, Yoon-Ah, Nam Choding

Motto: Be confident in everything

Group Position: Supporting Vocalist

Languages: Korean (Fluent), English, Chinese (Basic), Japanese (Basic)

DOB: May 30, 1990

Height: 166 cm (168 cm or so she states herself)

Weight: 47 kg

Blood Type: B

School: Daeyoung High School, Dongguk University (Theatre & Drama major)

Casted: 2002 SM Saturday Open Casting Audition

Duration of Training: 7 years and 2 months

Favorite Number: 93

Ideal Man: Kimura Takuya

Favorite Song from Girls' Generation: Complete

Roommate: Yuri