| Jack D. Walker | |
| Office: | 42nd Lieutenant Governor of Kansas |
| Governor: | Mike Hayden |
| Term Start: | January 12, 1987 |
| Term End: | January 14, 1991 |
| Predecessor: | Thomas Docking |
| Successor: | Jim Francisco |
| Party: | Republican |
| Birth Date: | 5 April 1922 |
| Birth Place: | Girard, Kansas, U.S. |
| Death Place: | Overland Park, Kansas, U.S. |
| Alma Mater: | Pittsburg State University University of Kansas |
| State Senate2: | Kansas |
| District2: | 8th |
| Termstart2: | January 14, 1985 |
| Termend2: | January 12, 1987 |
| Preceded2: | Jan Meyers |
| Successor2: | Dick Bond |
Jack D. Walker (April 5, 1922 – September 1, 2005) was an American politician and physician. He served as the 42nd Lieutenant Governor of Kansas from 1987 to 1991. Walker had previously served as a member of the Kansas Senate from the 8th district[1] and mayor of Overland Park, Kansas.
He is an alumnus of Pittsburg State University and the University of Kansas.[2] [3]