Samar Mubarakmand (Urdu: ثمر مبارک مند; b. 17 September 1942; NI, HI, SI, FPAS, DPhil), is a Pakistani nuclear physicist known for his research in gamma spectroscopy and experimental development of the linear accelerator.He came to public attention as the director of the test teams responsible for the performing the country's first and successful atomic tests (see Chagai-I and Chagai-II) at the Chagai Test Site, located in the Balochistan Province of Pakistan.