Yoo Jeong-yeon (Hân-kok-gí유정연; 1996 nî 11 goe̍h 1 ji̍t chhut-sì ), gē-miâ Jeongyeon (Hân-kok-gí: 정연), sī Hân-kok ê cha-bó͘ koa-chhiú. I taⁿ sī lú-chú thoân-thé Twice ê sêng-oân.

Jeongyeon