Jiyoon (지윤), alternatively spelled as Jiyun or Jiyoun, may refer to:
- Artists
- Jeon Jiyoon (also known as Jenyer) of PRSNT, a soloist singer and former member of 4minute
- Park Ji Yoon, a soloist singer under Parkjiyoon Creative
- Jiyun (currently known as Daru), a soloist singer and former member of E.RUDA and Bloomy
- Shin Jiyoon (also known as Swan and Yoonie), a soloist singer, DJ and former member of Weeekly
- People
- Kim Jiyun of A-plus, former member of SG Girls and ALPHA RAY
- Jiyun of Fresh
- Jang Jiyun of Hi Dream, former Stars Awakening contestant
- Park Jiyoon of Hwaiting
- Jiyoon of ICHILLIN', former Girls Planet 999 contestant
- Yoon Jiyoon of izna, former I-LAND 2 contestant
- Ma Jiyoon of Little Muse
- Jiyoon of ONE
- Jiyoon of Orbis
- Jiyun of Perfume
- Lee Jiyoon of TAEKWONCRE
- Jiyoon of VVUP
- Kim Jiyoon of YOUNGEST
- Jiyoon, former member of 10X10
- Jiyoon (currently known as Kim Witch), former member of A-Fati
- Jiyun, former pre-debut member of GIG
- Kim Jiyoon, former member of LUNA KIDS
- Jiyoun, former member of Nazca
- Jiyoon, former member of TURAN
- Jiyoon, former member of WITCHERS