| State House: | Vermont |
| District: | 2nd Windsor-Orange |
| Term Start: | October 1, 2013 |
| Term End: | January 7, 2015 |
| Alongside: | Jim Masland |
| Appointer: | Peter Shumlin |
| Preceded: | Margaret Cheney |
| Succeeded: | Timothy Briglin |
| Office2: | Vermont Secretary of Administration |
| Term Start2: | May 1, 1997 |
| Term End2: | November 1, 2002 |
| Governor2: | Howard Dean |
| Preceded2: | William Sorrell |
| Succeeded2: | Sean Campbell |
| Birth Name: | Kathleen Conner Clark |
| Birth Date: | 6 June 1942 |
| Birth Place: | Rich Square, North Carolina |
| Party: | Democratic |
| Residence: | Norwich, Vermont |
| Education: | University of North Carolina at Greensboro (BA) |
Kathleen Clark Hoyt (born June 6, 1942) is an American politician who served as chief of staff to Vermont governors Madeleine Kunin and Howard Dean and as Vermont Secretary of Administration. She was appointed to the Vermont House of Representatives in 2013 by Governor Peter Shumlin but chose not to run for reelection due to illness.[1] She attended the University of North Carolina at Greensboro and was married to state representative Norris Hoyt in 1974.[2] [3]