Thiên is a Vietnamese word which can refer to:

Thiền, a Vietnamese version of Zen Buddhism

People Lê Hoàng Thiên Mẫu Thượng Thiên Quốc Thiên Thiên Y A Na Thừa Thiên (empress) Thuận Thiên (Trần dynasty empress) Thuận Thiên (Nguyễn dynasty empress)

See also

Thien (disambiguation) Thiene Thoen (disambiguation)