Sunwoo Jung A (Hangul: 선우정아, Hanja: 鮮于貞娥), stylized as Sunwoojunga or swja, is a South Korean musician, singer-songwriter, and record producer who has worked with numerous Korean artists including , , GD & , 2NE1, , and San E. She released her debut album Masstige on 10 May 2006. She was born 11 May 1985 in Hanam, Gyeonggi Province, South Korea.

Agencies:
() (2025–present)
(2013–2024)
(former)