| John M. Walker | |
| Office: | Republican Leader of the Pennsylvania Senate |
| Term Start: | January 4, 1949 |
| Term End: | November 30, 1952 |
| Predecessor: | Weldon Heyburn |
| Successor: | Rowland Mahany |
| State Senate2: | Pennsylvania |
| District2: | 44th |
| Term Start2: | January 3, 1939 |
| Term End2: | November 30, 1954 |
| Predecessor2: | George Rankin, Jr. |
| Birth Date: | 15 January 1905 |
| Birth Place: | Oakmont, Pennsylvania |
| Death Place: | Pittsburgh, Pennsylvania |
| Spouse: | Marie Gordon |
John M. Walker (1905-1976) was a Republican politician from Pennsylvania.
Born on January 15, 1905, in Leechburg, Pennsylvania, Walker was the son of a general manager of Allegheny Steel Company. He studied at Culver Military Academy before serving in the infantry during World War I. After obtaining a degree from University of Pittsburgh's School of Business Administration, he attended the University of Pittsburgh School of Law, graduating in 1925. Following his education, Walker practiced law in Leechburg.
In 1931, he was appointed Special Deputy Attorney General to Governor Gifford Pinchot. From 1939 through 1954, he served in the State Senate, representing parts of Allegheny County. He gained a reputation for his combative anti-tax viewpoints while in the Senate. He later served as a member of Allegheny County's Board of Commissioners. Walker won the party's 1958 primary for Lieutenant Governor, but was part of a losing ticket with Arthur McGonigle.
Walker was appointed Judge of the Courts of Allegheny County in 1964, and retired in 1968.
Walker died on December 10, 1976, at Shadyside Hospital in Pittsburgh.[1]