| Honorific-Prefix: | The Honourable Justice |
| Katharine Williams | |
| Office: | Judge of the Supreme Court of Victoria |
| Term Start: | 28 October 2002 |
| Term End: | 12 February 2015 |
| Occupation: | Judge, lawyer |
| Education: | Melbourne University |
| Birth Name: | Katharine Gorman |
| Relatives: | James P. Gorman (brother) |
| Nationality: | Australian |
Katharine Williams is a former Trials Division justice at the Supreme Court of Victoria.[1] She was appointed to the bench 28 October 2002 and left 12 February 2015.[2] Williams attended law school at Melbourne University, taking law classes as early as age 16.[3] Williams has 9 siblings, including James P. Gorman, the executive chairman and former CEO of Morgan Stanley.[4]