| J. Harold Grady | |
| Office: | Maryland State Court Judge |
| Term Start: | 1962 |
| Term End: | 1984 |
| Order2: | 42nd |
| Office2: | Mayor of Baltimore |
| Term Start2: | 1959 |
| Term End2: | 1962 |
| Birth Date: | 27 February 1917 |
| Birth Place: | Williamsport, Lycoming County, Pennsylvania |
| Party: | Democratic |
Joseph Harold Grady (February 27, 1917 – January 9, 2002)[1] was a judge and the mayor of Baltimore, Maryland from 1959 to 1962.
Prior to running for mayor, he was an FBI agent and state's attorney for Baltimore city.[2]