Post-quantum ZK (zero-knowledge) is becoming one of the most important topics in advanced cryptography as industries look for protection against future quantum attacks. What makes Post-quantum ZK zero knowledge so compelling is how it blends mathematical strength with practical security, letting systems verify sensitive information without revealing the data itself. Researchers and developers are exploring it not just as a defensive upgrade but as a way to build faster, more private digital infrastructures that can survive the shift to quantum computing.