John Muckler trades
| Arizona Coyotes acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 2008 2nd round pick (#49-Jared Staal) | February 27, 2007 | Oleg Saprykin |  |
| 2007 7th round pick (#183-Torrie Jung) | ||||
| Washington Capitals acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Andy Hedlund | February 26, 2007 | Lawrence Nycholat | |
| 2007 6th round pick (#180-Justin Taylor) | ||||
| New York Islanders acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Tomas Malec | January 5, 2007 | Matt Koalska | |
| Arizona Coyotes acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Alexei Kaigorodov | January 3, 2007 | Mike Comrie | |
| Chicago Blackhawks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Martin Havlat | July 9, 2006 | Michal Barinka | |
| Bryan Smolinski | Josh Hennessy | |||
| Tom Preissing | ||||
| 2008 2nd round pick (#42-Patrick Wiercioch) | ||||
| Chicago Blackhawks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Brandon Bochenski | March 9, 2006 | Tyler Arnason | |
| 2006 2nd round pick (#61-Simon Danis-Pepin) | ||||
| Florida Panthers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 2007 conditional pick | October 5, 2005 | Filip Novak | |
| Atlanta Thrashers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Greg de Vries | August 23, 2005 | Dany Heatley | |
| Marian Hossa | ||||
| Minnesota Wild acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Todd White | July 30, 2005 | 2005 4th round pick (#95-Cody Bass) | |
| St. Louis Blues acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Patrick Lalime | June 27, 2004 | 2005 conditional 4th round pick (#98-Ilya Zubov) | |
| Los Angeles Kings acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Radek Bonk | June 26, 2004 | 2004 3rd round pick (#77-Shawn Weller) | |
| New York Rangers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Alexandre Giroux | March 9, 2004 | Greg de Vries | |
| Karel Rachunek | ||||
| Nashville Predators acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Shane Hnidy | March 9, 2004 | 2004 3rd round pick (#87-Peter Regin) | |
| Washington Capitals acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Brooks Laich | February 18, 2004 | Peter Bondra | |
| 2005 2nd round pick (#52-Chris Durand) | ||||
| Anaheim Ducks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Petr Schastlivy | February 4, 2004 | Todd Simpson | |
| Colorado Avalanche acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Dennis Bonvie | January 23, 2004 | Charlie Stephens | |
| Atlanta Thrashers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Daniel Corso | January 6, 2004 | Brad Tapper | |
| Florida Panthers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Wade Brookbank | December 29, 2003 | future considerations | |
| Washington Capitals acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| future considerations (2004 9th round pick (#263-Travis Morin)) | October 5, 2003 | Denis Hamel | |
| Florida Panthers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| 2004 9th round pick (#283-Luke Beaverson) | September 10, 2003 | Serge Payer | |