The enzyme hydroxypyruvate decarboxylase () catalyzes the chemical reaction
This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is hydroxypyruvate carboxy-lyase (glycolaldehyde-forming). This enzyme is also called hydroxypyruvate carboxy-lyase. This enzyme participates in glyoxylate and dicarboxylate metabolism.