The Ray Bourque Trophy is awarded to the league's best defenseman, as voted by the DFHL's general managers. It was first awarded for Season Six.
| Season | Winner(s) |
|---|---|
| 38 | Erik Karlsson (Quebec Nordiques) |
| 37 | John Carlson (Chicago Black Hawks) |
| 36 | Victor Hedman (New York Americans) |
| 35 | Jakob Chychrun (Minnesota North Stars) |
| 34 | Kris Letang (Detroit Red Wings) |
| 33 | Thomas Chabot (Boston Bruins) |
| 32 | John Carlson (Chicago Black Hawks) |
| 31 | Brent Burns (Quebec Nordiques) |
| 30 | Erik Karlsson (Minnesota North Stars) |
| 29 | Victor Hedman (New York Americans) |
| 28 | Kris Letang (Detroit Red Wings) |
| 27 | Brent Burns (Ottawa Senators) |
| 26 | Erik Karlsson (Minnesota North Stars) |
| 25 | Brent Burns (Ottawa Senators) |
| 24 | Mark Giordano (Detroit Red Wings) |
| 23 | Kris Letang (Detroit Red Wings) |
| 22 | Dan Hamhuis (Hamilton Tigers) |
| 21 | Dan Boyle (Toronto Maple Leafs) |
| 20 | Erik Karlsson (Minnesota North Stars) |
| 19 | Drew Doughty (Hamilton Tigers) |
| 18 | Drew Doughty (Hamilton Tigers) |
| 17 | Dan Boyle (New York Americans) |
| 16 | Nicklas Lidstrom (Minnesota North Stars) |
| 15 | Nicklas Lidstrom (Minnesota North Stars) |
| 14 | Dion Phaneuf (Montreal Canadiens) |
| 13 | Dan Boyle (Detroit Red Wings) |
| 12 | Tomas Kaberle (Hartford Whalers) |
| 11 | Nicklas Lidstrom (Minnesota North Stars) |
| 10 | Nicklas Lidstrom (Minnesota North Stars) |
| 9 | Bryan McCabe (Chicago Black Hawks) |
| 8 | Nicklas Lidstrom (Minnesota North Stars) |
| 7 | Nicklas Lidstrom (Minnesota North Stars) |
| 6 | Nicklas Lidstrom (Minnesota North Stars) |