Notable deals
| Edmonton Oilers acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Griffin Reinhart | June 26, 2015 | 2015 1st round pick |  |
| 2015 2nd round pick | ||||
| Buffalo Sabres acquire | Date | Colorado Avalanche acquire | ||
|---|---|---|---|---|
 | Ryan O`Reilly | June 26, 2015 | Nikita Zadorov |  |
| Jamie McGinn | Mikhail Grigorenko | |||
| J.T. Compher | ||||
| 2015 2nd round pick | ||||
| Los Angeles Kings acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Milan Lucic | June 26, 2015 | Martin Jones |  |
| Colin Miller | ||||
| 2015 1st round pick | ||||
| Calgary Flames acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Dougie Hamilton | June 26, 2015 | 2015 1st round pick | |
| 2015 2nd round pick | ||||
| 2015 2nd round pick | ||||
| Buffalo Sabres acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Robin Lehner | June 26, 2015 | 2015 1st round pick |  |
| David Legwand | ||||
| Anaheim Ducks acquire | Date | Columbus Blue Jackets acquire | ||
|---|---|---|---|---|
 | James Wisniewski | March 2, 2015 | Rene Bourque |  |
| 2015 3rd round pick | William Karlsson | |||
| 2015 2nd round pick | ||||
| Montreal Canadiens acquire | Date | Edmonton Oilers acquire | ||
|---|---|---|---|---|
 | Jeff Petry | March 2, 2015 | 2015 2nd round pick | |
| 2015 conditional 5th round pick | ||||
| Tampa Bay Lightning acquire | Date | Philadelphia Flyers acquire | ||
|---|---|---|---|---|
 | Braydon Coburn | March 2, 2015 | Radko Gudas |  |
| 2015 1st round pick | ||||
| 2015 3rd round pick | ||||
| Buffalo Sabres acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
| Chad Johnson | March 2, 2015 | Michal Neuvirth | |
| 2016 3rd round pick | ||||
| Minnesota Wild acquire | Date | Buffalo Sabres acquire | ||
|---|---|---|---|---|
 | Chris Stewart | March 2, 2015 | 2017 2nd round pick | |
| Anaheim Ducks acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
| Simon Despres | March 2, 2015 | Ben Lovejoy |  |
| New York Rangers acquire | Date | Arizona Coyotes acquire | ||
|---|---|---|---|---|
 | Keith Yandle | March 1, 2015 | Anthony Duclair |  |
| Chris Summers | John Moore | |||
| 2015 4th round pick | 2015 2nd round pick | |||
| 2016 1st round pick | ||||
| Detroit Red Wings acquire | Date | Dallas Stars acquire | ||
|---|---|---|---|---|
 | Erik Cole | March 1, 2015 | Mattias Backman |  |
| 2015 conditional 3rd round pick | Mattias Janmark | |||
| 2015 2nd round pick | ||||
| Chicago Blackhawks acquire | Date | Arizona Coyotes acquire | ||
|---|---|---|---|---|
 | Antoine Vermette | February 28, 2015 | Klas Dahlbeck | |
| 2015 1st round pick | ||||
| Anaheim Ducks acquire | Date | Florida Panthers acquire | ||
|---|---|---|---|---|
| Tomas Fleischmann | February 28, 2015 | Dany Heatley |  |
| 2015 3rd round pick | ||||
| Chicago Blackhawks acquire | Date | Philadelphia Flyers acquire | ||
|---|---|---|---|---|
| Kimmo Timonen | February 27, 2015 | 2015 2nd round pick | |
| 2016 conditional 4th round pick | ||||
| Florida Panthers acquire | Date | New Jersey Devils acquire | ||
|---|---|---|---|---|
| Jaromir Jagr | February 26, 2015 | 2015 2nd round pick |  |
| 2016 3rd round pick | ||||
| Columbus Blue Jackets acquire | Date | Toronto Maple Leafs acquire | ||
|---|---|---|---|---|
| David Clarkson | February 26, 2015 | Nathan Horton |  |
| Los Angeles Kings acquire | Date | Carolina Hurricanes acquire | ||
|---|---|---|---|---|
| Andrej Sekera | February 25, 2015 | 2015 or 2016 conditional 1st round pick |  |
| Roland McKeown | ||||
| Nashville Predators acquire | Date | Toronto Maple Leafs acquire | ||
|---|---|---|---|---|
 | Cody Franson | February 15, 2015 | Olli Jokinen | |
| Mike Santorelli | Brendan Leipsic | |||
| 2015 1st round pick | ||||