| Maurice B. Cohill Jr. | |
| Office: | Senior Judge of the United States District Court for the Western District of Pennsylvania |
| Term Start: | November 28, 1994 |
| Term End: | January 1, 2022 |
| Office1: | Chief Judge of the United States District Court for the Western District of Pennsylvania |
| Term Start1: | 1985 |
| Term End1: | 1992 |
| Predecessor1: | Hubert Irving Teitelbaum |
| Successor1: | Gustave Diamond |
| Office2: | Judge of the United States District Court for the Western District of Pennsylvania |
| Term Start2: | May 21, 1976 |
| Term End2: | November 28, 1994 |
| Appointer2: | Gerald Ford |
| Predecessor2: | Louis Rosenberg |
| Successor2: | Arthur J. Schwab |
| Birth Name: | Maurice Blanchard Cohill Jr. |
| Birth Date: | 26 November 1929[1] |
| Birth Place: | Pittsburgh, Pennsylvania, U.S. |
| Nationality: | USA |
| Spouse: | Suzanne Miller (died 1986) Anne D. Mullaney (died 2011) |
| Children: | 4 |
| Education: | Princeton University (A.B.) University of Pittsburgh School of Law (LL.B.) |
Maurice Blanchard Cohill Jr. (November 26, 1929 – January 1, 2022) was a United States district judge of the United States District Court for the Western District of Pennsylvania.
Born in Pittsburgh, Pennsylvania, Cohill received an Artium Baccalaureus degree from Princeton University in 1951 and a Bachelor of Laws from the University of Pittsburgh School of Law in 1956. He was a captain in the United States Marine Corps from 1951 to 1953. He was in private practice in Pittsburgh from 1956 to 1965. He was a judge of the Juvenile Court of Allegheny County, Pennsylvania from 1965 to 1968, and then of the Court of Common Pleas of that county until 1976.
On May 4, 1976, Cohill was nominated by President Gerald Ford to a seat on the United States District Court for the Western District of Pennsylvania vacated by Judge Louis Rosenberg. Cohill was confirmed by the United States Senate on May 18, 1976, and received his commission on May 21, 1976. He served as Chief Judge from 1985 to 1992, and assumed senior status on November 28, 1994. He took inactive senior status in 2016, meaning that while he remained a federal judge, he no longer heard cases or participated in the business of the court.
Cohill died on January 1, 2022, at the age of 92.[2] He was predeceased by both his wives and survived by his four children and eight grandchildren.[3]