Achalinus hainanus

{{Short description|Species of snake}}

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| status = VU | status_system = IUCN3.1

| status_ref = {{cite iucn |author=Lau, M. |author2=Zhou, Z. |date=2017 |title=Achalinus hainanus |volume=2017 |page=e.T192028A118227958 |doi=10.2305/IUCN.UK.2017-2.RLTS.T192028A118227958.en |access-date=19 November 2021}}

| taxon = Achalinus hainanus

| authority = Huang in Hu, Zhao & Huang, 1975

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Achalinus hainanus, also known as the Hainan odd-scaled snake, is a species of snake in the family Xenodermatidae. It is endemic to the island of Hainan in China.{{NRDB species |genus=Achalinus |species=hainanus |accessdate=14 May 2019}}