Nhã Ca (pen name for Trần Thị Thu Vân; 20 October 1939, Huế, Vietnam) is a Vietnamese-American poet and novelist.
Trần Thị Thu Vân grew up in Huế and studied at Đồng Khánh College there.
In 1975, after Vietnam's reunification, she was identified her as one of ten authors, and the only female, who were blacklisted as a "cultural guerrilla" and she was a political prisoner in jail for two years from 1976.
Nha Ca's subsequent literary output has been limited, though in 2006, she published a novel in four thick volumes, Đường Tự Do (Việt Báo, Westminster 2006).
Nha Ca arrived in Huế before the Tết weekend in January, 1968 to attend the Buddhist funeral of her father.