Most assists in an NHL defenseman's season
, , , .
Bobby Orr leads with 102 assists in 1970-71, first of 16,051 defenseman seasons.
| # | Player and seasons | Value |
|---|---|---|
 Bobby Orr (1970-71 BOS)1970-71 | 102 | |
| Bobby Orr (1973-74 BOS)1973-74 | 90 | |
 Paul Coffey (1985-86 EDM)1985-86 | 90 | |
| Bobby Orr (1974-75 BOS)1974-75 | 89 | |
| Bobby Orr (1969-70 BOS)1969-70 | 87 | |
| Paul Coffey (1983-84 EDM)1983-84 | 86 | |
| Paul Coffey (1984-85 EDM)1984-85 | 84 | |
 Paul Coffey (1988-89 PIT)1988-89 | 83 | |
| Bobby Orr (1971-72 BOS)1971-72 | 80 | |
 Brian Leetch (1991-92 NYR)1991-92 | 80 | |
 Phil Housley (1992-93 WIN)1992-93 | 79 | |
| Sergei Zubov (1993-94 NYR)1993-94 | 77 | |
 Erik Karlsson (2022-23 SJS)2022-23 | 76 | |
 Al MacInnis (1990-91 CGY)1990-91 | 75 | |
  Paul Coffey (1992-93 LAK/DET)1992-93 | 75 | |
 Quinn Hughes (2023-24 VAN)2023-24 | 75 | |
| Paul Coffey (1989-90 PIT)1989-90 | 74 | |
| Evan Bouchard (2025-26 EDM)2025-26 | 74 | |
| Ray Bourque (1990-91 BOS)1990-91 | 73 | |
 Roman Josi (2021-22 NSH)2021-22 | 73 | |
| Bobby Orr (1972-73 BOS)1972-73 | 72 | |
| Ray Bourque (1986-87 BOS)1986-87 | 72 | |
| Brian Leetch (1990-91 NYR)1990-91 | 72 | |
| Ray Bourque (1993-94 BOS)1993-94 | 71 | |
 Denis Potvin (1978-79 NYI)1978-79 | 70 |