- Not to be confused with Yuna.
Yoona (윤아), alternatively spelled as Yoonah, Yunah or Yuna, may refer to:
- Artists
- Yoona, a soloist and member of Girls' Generation
- People
- Yunah of ILLIT, former R U Next? contestant
- Yuna of Memoria
- Yuna of Sparkling
- Yoona of UNIS, former member of Free In Sass and Play With Me Club, former Universe Ticket contestant
- Yoonah, former member of 10X10
- YooNa, former trainee of Just COLOR
- Yoonah, former member of LPG
- Woo Yunah (currently known as Kang Hyunji), former member of TAMTAM and Settorae