Quercus xuanlienensis is a species of oak. It is a tree endemic to Vietnam. It is known from a single individual from Xuan Lien Nature Reserve in Thanh Hóa Province, where it grows in montane evergreen moist forest at 810 metres elevation.
The species was described by Hoang Thi Binh, Nguyen Van Ngoc, and Trinh Ngoc Bon in 2018.
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