This is a list of names in which the gender is unisex; and the usage is Vietnamese.
AN (1) m & f Chinese, Vietnamese
From Chinese 安 (ān)
meaning "peace, quiet" or other characters with a similar pronunciation. As a Vietnamese name, it is derived from Sino-Vietnamese 安
meaning "safe, secure".
LAN f & m Chinese, Vietnamese
From Chinese 兰 (lán)
meaning "orchid, elegant" (which is usually only feminine) or 岚 (lán)
meaning "mountain mist". Other Chinese characters can form this name as well. As a Vietnamese name, it is derived from Sino-Vietnamese 蘭
PHÚC m & f Vietnamese
From Sino-Vietnamese 福 (phúc)
meaning "happiness, good fortune, blessing".
TÚ m & f Vietnamese
From Sino-Vietnamese 秀 (tú)
meaning "luxuriant, beautiful, elegant, outstanding".