In enzymology, an aryl-alcohol oxidase () is an enzyme that catalyzes the chemical reaction
An example is the oxidation of benzyl alcohol to benzaldehyde.
The two substrates of this enzyme are an aromatic primary alcohol and oxygen. Its products are the corresponding aromatic aldehyde and hydrogen peroxide.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is aryl-alcohol:oxygen oxidoreductase. Other names in common use include aryl alcohol oxidase, veratryl alcohol oxidase, and arom. alcohol oxidase.
As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes , , , and .