LAMMPS ReaxFF potential for Zn-O-H systems ('pair_style reax/c' with potential file ffield.reax.ZnOH2 and additional control and charge equilibration information). Based on QM calculations for Zn(s), ZnO(s), and Zn hydroxide clusters [Zn(OH)2 and O(ZnOH)2], ReaxFF parameters were generated for Zn-O and Zn-Zn bond energies and for Zn-O-Zn, O-Zn-O, O-Zn-Zn and Zn-O-H valence angle energies. QM calculations were performed for the four crystal polymorphs of the wurtzite, zincblende, rocksalt and caesium chloride structures (the structures are also referred to as h-ZnS, c-ZnS, NaCl and CsCl, respectively).