Oh Hae-won (오해원; born February 25, 2003), known mononymously as Haewon (해원), is a South Korean singer under JYP Entertainment. She is the leader of the girl group NMIXX.
Known For: Acting
Birthday: 2003-02-25
Place of Birth: Incheon, South Korea
Also Known As: Oh Hae-won, 오해원, 해원, NMIXX, 엔믹스, 吴海嫄