| State House: | Vermont |
| District: | 2nd Windsor-Orange |
| Term Start: | January 3, 2007 |
| Term End: | October 1, 2013 |
| Alongside: | Jim Masland |
| Preceded: | Ann Seibert |
| Succeeded: | Kathy Hoyt |
| Birth Date: | 1 August 1952 |
| Birth Place: | Hanover, New Hampshire, U.S. |
| Party: | Democratic |
| Residence: | Norwich, Vermont |
| Education: | Harvard University (BA) |
Margaret Rice Cheney (born August 1, 1952) is an American politician who served as a member of the Vermont House of Representatives from 2007 until her appointment to the Vermont Public Service Board in 2013.[1] She was the managing editor of Washingtonian from 1978 to 1989, after which she moved to Norwich, Vermont. She is married to U.S. Senator Peter Welch.[2]