Marshall Johnston trades
| Florida Panthers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | return of 2001 or 2002 conditional pick that had been previously acquired | March 13, 2001 | Mike Sillinger |  |
| Tampa Bay Lightning acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | John Emmons | March 13, 2001 | Craig Millar | |
| Minnesota Wild acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 2001 3rd round pick (#93-Stephane Veilleux) | March 13, 2001 | Curtis Leschyshyn | |
| 2002 conditional pick (not exercised) | ||||
| New York Rangers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Colin Forbes | March 1, 2001 | Eric Lacroix | |
| Florida Panthers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Vaclav Prospal | January 20, 2001 | 2001 4th round pick or 2002 3rd round pick (pick returned to Panthers in subsequent transaction) | |
| Detroit Red Wings acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 2000 8th round pick (#251-Todd Jackson) | June 25, 2000 | Shane Hnidy | |
| Los Angeles Kings acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | 2000 4th round pick (#118-Lubomir Visnovsky) | June 25, 2000 | 2000 5th round pick (#156-Greg Zanon) | |
| 2000 5th round pick (#157-Grant Potulny) | ||||
| Anaheim Ducks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Patrick Traverse | June 12, 2000 | Joel Kwiatkowski | |
| Tampa Bay Lightning acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| 2000 7th round pick (#220-Paul Gaustad) | June 4, 2000 | Rich Parent | |
| Pittsburgh Penguins acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Janne Laukkanen | March 14, 2000 | Tom Barrasso | |
| Ron Tugnutt | ||||
| Tampa Bay Lightning acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| future considerations | March 8, 2000 | Jeff Shevalier | |
| Tampa Bay Lightning acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Bruce Gardiner | November 11, 1999 | Colin Forbes | |
| Tampa Bay Lightning acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Andreas Johansson | June 30, 1999 | Rob Zamuner | |
| rights to sign Rick Dudley as GM | 2000 or 2001 or 2002 2nd round pick (2002 #34-Tobias Stephan) | |||
| Anaheim Ducks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| 1999 2nd round pick (#44-Jordan Leopold) | June 26, 1999 | 1999 2nd round pick (#48-Simon Lajeunesse) | |
| 1999 7th round pick (#201-Mikko Ruutu) | ||||
| Anaheim Ducks acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Ted Donato | June 18, 1999 | Patrick Lalime | |
| rights to Antti-Jussi Niemi | ||||
| Atlanta Thrashers acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
 | Damian Rhodes | June 18, 1999 | future considerations | |