| Birth Date: | 1916 8, mf=yes |
| Birth Place: | Fort William, Ontario, Canada |
| Death Place: | Fort William, Ontario, Canada |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lb: | 175 |
| Position: | Right wing/Centre |
| Shoots: | Right |
| Played For: | Montreal Canadiens |
| Career Start: | 1936 |
| Career End: | 1953 |
Murdo John MacKay (August 8, 1916 – August 8, 2000) was a Canadian professional ice hockey forward. MacKay played 14 regular season games and 15 playoff games in the National Hockey League for the Montreal Canadiens between 1946 and 1949. The rest of his career, which lasted from 1936 to 1953, was spent in the minor leagues.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 1932–33 | Fort William Forts | TBJHL | 7 | 2 | 0 | 2 | 0 | — | — | — | — | — | ||
| 1933–34 | Fort William Cubs | TBJHL | 19 | 11 | 3 | 14 | 16 | — | — | — | — | — | ||
| 1934–35 | Fort William Kams | TBJHL | 16 | 8 | 3 | 11 | 6 | — | — | — | — | — | ||
| 1935–36 | Fort William Kams | TBJHL | 16 | 23 | 9 | 32 | 10 | 2 | 1 | 0 | 1 | 2 | ||
| 1935–36 | Fort William Kams | M-Cup | — | — | — | — | — | 4 | 7 | 3 | 10 | 0 | ||
| 1936–37 | New York Rovers | EAHL | 47 | 5 | 5 | 10 | 6 | 3 | 0 | 0 | 0 | 0 | ||
| 1937–38 | New York Rovers | EAHL | 39 | 7 | 6 | 13 | 4 | — | — | — | — | — | ||
| 1938–39 | New York Rovers | EAHL | 42 | 20 | 18 | 38 | 8 | — | — | — | — | — | ||
| 1939–40 | New York Rovers | EAHL | 58 | 44 | 44 | 88 | 29 | — | — | — | — | — | ||
| 1940–41 | Philadelphia Ramblers | AHL | 56 | 20 | 15 | 35 | 12 | — | — | — | — | — | ||
| 1941–42 | Buffalo Bisons | AHL | 56 | 21 | 20 | 41 | 17 | — | — | — | — | — | ||
| 1942–43 | Nanaimo Navy | NNDHL | 20 | 22 | 7 | 29 | 8 | 6 | 5 | 3 | 8 | 6 | ||
| 1943–44 | Nanaimo Navy | NNDHL | 18 | 16 | 8 | 24 | 4 | — | — | — | — | — | ||
| 1944–45 | Halifax Navy | NSDHL | 12 | 8 | 6 | 14 | 0 | 6 | 3 | 1 | 4 | 0 | ||
| 1945–46 | Montreal Canadiens | NHL | 5 | 0 | 1 | 1 | 0 | — | — | — | — | — | ||
| 1945–46 | Buffalo Bisons | AHL | 58 | 32 | 31 | 63 | 18 | 12 | 5 | 8 | 13 | 2 | ||
| 1946–47 | Buffalo Bisons | AHL | 59 | 35 | 26 | 61 | 13 | 4 | 1 | 1 | 2 | 4 | ||
| 1946–47 | Montreal Canadiens | NHL | — | — | — | — | — | 9 | 0 | 1 | 1 | 0 | ||
| 1947–48 | Montreal Canadiens | NHL | 14 | 0 | 2 | 2 | 0 | — | — | — | — | — | ||
| 1947–48 | Buffalo Bisons | AHL | 55 | 37 | 39 | 76 | 15 | 8 | 4 | 4 | 8 | 0 | ||
| 1948–49 | Buffalo Bisons | AHL | 68 | 32 | 52 | 84 | 20 | — | — | — | — | — | ||
| 1948–49 | Montreal Canadiens | NHL | — | — | — | — | — | 6 | 1 | 1 | 2 | 0 | ||
| 1949–50 | Buffalo Bisons | AHL | 67 | 30 | 24 | 54 | 6 | 5 | 0 | 0 | 0 | 0 | ||
| 1950–51 | Cleveland Barons | AHL | 69 | 25 | 36 | 61 | 6 | 11 | 2 | 2 | 4 | 0 | ||
| 1951–52 | Quebec Aces | QSHL | 40 | 14 | 24 | 38 | 4 | 15 | 5 | 6 | 11 | 6 | ||
| 1952–53 | Quebec Aces | QSHL | 55 | 4 | 18 | 22 | 4 | 22 | 3 | 8 | 11 | 6 | ||
| AHL totals | 488 | 232 | 243 | 475 | 107 | 40 | 12 | 15 | 27 | 6 | ||||
| NHL totals | 19 | 0 | 3 | 3 | 0 | 15 | 1 | 2 | 3 | 0 | ||||