Acanthorrhynchium is a genus of mosses belonging to the family Sematophyllaceae.

[1] The species of this genus are found in Southeast Asia.

[1] Its type species is Acanthorrhynchium papillatum,[2] which was previously considered to be the type of the older generic name Acanthodium Mitt.

However, Acanthodium is a nomen illegitimum as a later homonym of Angiosperm genus name Acanthodium Delile 1813 and thus Acanthorrhynchium is nomenclaturally correct.

This Hypnales-related article is a stub.