ZPP

ZPP may refer to:
 * ZPP (complexity), zero-error probabilistic polynomial time
 * Zinc protoporphyrin
 * zirconium-potassium perchlorate, a pyrotechnic composition
 * Związek Patriotów Polskich, a Polish communist political party

zpp may refer to:
 * ISO 639:zpp, ISO 639-3 code for El Alto Zapotec