In enzymology, N<sup>ñ</sup>-benzyloxycarbonylleucine hydrolase () is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are N<sup>ñ</sup>-benzyloxycarbonyl-<small>L</small>-leucine and H<sub>2</sub>O, whereas its three products are benzyl alcohol, CO<sub>2</sub>, and <small>L</small>-leucine.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is Nalpha-benzyloxycarbonyl-L-leucine urethanehydrolase. Other names in common use include benzyloxycarbonylleucine hydrolase, Nalpha-benzyloxycarbonyl amino acid urethane hydrolase IV, and alpha-N-benzyloxycarbonyl-L-leucine urethanehydrolase.