| Harry M. Leonard | |
| Other Names: | H.M. Leonard Harry Leonard |
| Birth Date: | 22 June 1900 |
| Birth Place: | Scranton, Pennsylvania, USA |
| Death Place: | Los Angeles County, California, USA |
| Occupation: | sound mixer |
| Yearsactive: | 1930-1968 |
Harry M. Leonard (June 22, 1900 – December 17, 1985) was an American sound mixer who had just under 300 film credits, including films such as The Day the Earth Stood Still and Laura.
He was nominated at the 18th Academy Awards for Best Special Effects, for the film Captain Eddie. His nomination was shared with Fred Sersen, Roger Heman Sr. and Sol Halperin.[1]