| Election Name: | 2006 United States House of Representatives election in Vermont, At-large district |
| Country: | Vermont |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2004 United States House of Representatives election in Vermont |
| Previous Year: | 2004 |
| Next Election: | 2008 United States House of Representatives election in Vermont |
| Next Year: | 2008 |
| Election Date: | November 7, 2006 |
| Nominee1: | Peter Welch |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 139,815 |
| Percentage1: | 53.2% |
| Nominee2: | Martha Rainville |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 117,023 |
| Percentage2: | 44.5% |
| Representative At-large | |
| Before Election: | Bernie Sanders |
| Before Party: | Independent (politician) |
| After Election: | Peter Welch |
| After Party: | Democratic Party (United States) |
The 2006 United States House of Representatives election in Vermont was held on November 7, 2006, for representation of Vermont's at-large congressional district in the United States House of Representatives from January 3, 2007, to January 3, 2009.
Incumbent Congressman Bernie Sanders, an independent member of Congress who caucused with the Democrats, did not seek a ninth term in the House, instead running successfully for the United States Senate.
To replace Congressman Sanders, Democrat Peter Welch defeated Republican Martha Rainville by a surprisingly somewhat narrow margin (just under 10%) in staunchly-liberal Vermont. As of 2022, this is the last federal election in which a Republican received more than 33% of the vote.
| Source | Date | Peter Welch (D) | Martha Rainville (R) | Jane Newton (LU) | ||
|---|---|---|---|---|---|---|
| align=left | Research 2000[1] | October 23–24, 2006 | 51% | 41% | ||
| align=left | Greenburg Quinlan[2] | October 8–9, 2006 | 52% | 41% | ||
| align=left | Research 2000[3] | September 18–19, 2006 | 45% | 39% | ||
| align=left | American Research Group[4] | September 14, 2006 | 48% | 45% | 2% | |
| align=left | American Research Group | July 27, 2006 | 41% | 42% | ||