Rina (리나 or 린아), alternatively spelled as Lina, may refer to:
- Artists
- Lina (currently known as Sejin), a soloist and former member of ANS
- Chae Ri Na of Roo'Ra, a soloist and former member of DIVA and Girl Friends
- Lina (formerly known as Blenn), a soloist and former member of REDSQUARE
- People
- Rina of Beauty Box
- Lina (currently known as Yena) of NWH:I, former member of WE-SAY and Chic&I's
- Rina of Pink Bling
- Lina of The Grace and former member of Isak 'N' Jiyeon
- Rina, former pre-debut member of Amyx
- Lina, former member of Awe5ome Baby
- Rina, former member of DEJAVU
- Lina, former member of F1RST
- Rina Fukushi former member of GAIA
- Rina, former member of GIRLS GIRLS
- Lin A, former member of GLOSS
- Rina, former pre-debut member of ILUV
- Rina, former pre-debut member of LABELUP
- Kim Rina, former member of Little Muse
- Kim Rina, former member of LUNA KIDS
- Cheong Lina, former member of M.I.S.O
- Kim Lina, former My Teenage Girl contestant
- Lina (formerly known as Soojin and Lia), former pre-debut member of N-DAY
- Lin-A, former member of N*White
- Lina, former member of O21
- Lina, former member of Smile.G
- Lina (formerly known as HyunAh), former member of WANNA.B and BELLA4
- Lina, former pre-debut member of We Girls
- Rina, former member of Weki Meki
- Lina, former member of XoX
- Lina, former Under 15 contestant