Qamar-Uz-Zaman Chaudhry is a Pakistani climate scientist. He is a researcher in the fields of climate change, meteorology, atmospheric sciences, hydrology and seismology and has written over 50 articles in the fields of meteorology, atmospheric sciences, hydrology, seismology, plate tectonics and earthquakes. He is the lead author of Pakistan's first National Climate Change policy. He served as the Vice President of the World Meteorological Organisation.