Girls' Generation Yoona Profile
- Stagename: Yoona (윤아)
- Surname: Im
- Firstname: Yoon-ah
- Nationality: Korean
- Birthdate: May 30, 1990
- Age: 28 (International), 30 (Korean)
- Western zodiac: ♊ Gemini
- Chinese zodiac: Horse
- Height: 167 cm (5 ft 5 in)
- Weight: 48 kg (106 lbs)
- Bloodtype: B
