Nama Panggung: YoonA (윤아)
Nama Lahir: Im Yoon Ah (임윤아)
Nama Panggilan: Deer Yoona, Him Yoona (Strength Yoona), Goddess Yoong, Yoong
Motto: Be confident in everything
Posisi di Grup: Supporting Vocalist
Bahasa: Korean (Fluent) , English, Chinese (Basic) , Japanese (Basic)
TTL May 30, 1990Tinggi: 166cm (168cm or so she states herself)
Berat: 47kgGolongan Darah: B
Sekolah: Daeyoung High School, 2nd Year
Casted: 2002 SM Saturday Open Casting Audition
Training: 7 tahun 2 bulan
