|Born||December 6, 1919|
Detroit, Michigan, United States
|Died||May 24, 1974 (aged 54)|
Bethesda, Maryland, United States
|Alma mater||Washington University in St. Louis Missouri School of Mines and Metallurgy|
|Awards||Guggenheim Fellowship (1957)|
|Institutions||The Catholic University of America|
Clyde Lorrain Cowan Jr (December 6, 1919 – May 24, 1974) was an American physicist. He was the co-discoverer of the neutrino along with Frederick Reines. The discovery was made in 1956 in the neutrino experiment. Frederick Reines received the Nobel Prize in Physics in 1995 in both their names.