| Birth Name: | William Rudolf Muehlberger |
| Birth Date: | September 26, 1923 |
| Birth Place: | New York, New York, United States |
| Known For: | Training of Apollo astronauts, North American Structural Geology |
| Education: | Ph.D., Structural Geology (1954) |
| Alma Mater: | California Institute of Technology (Caltech) |
| Employer: | University of Texas at Austin (emeritus) |
| Occupation: | Geology professor |
| Years Active: | 1954 to 1992 |
| Spouse: | Sally J. Provine |
| Signature: | Muehlberger Signature.jpg |
William Rudolf "Bill" Muehlberger (September 26, 1923 – September 14, 2011), Professor of Geology at University of Texas at Austin, was the geology principal investigator of both the Apollo 16 and 17 missions to the Moon, for National Aeronautics and Space Administration (NASA). He died of natural causes on September 14, 2011.[1] [2]
The Apollo 16 Moon rock Big Muley is named after Muehlberger.