| Position: | Left wing |
| Played For: | Boston Bruins |
| Shoots: | Left |
| Height Ft: | 6 |
| Height In: | 1 |
| Weight Lb: | 180 |
| Birth Date: | 1936 4, mf=yes |
| Birth Place: | Estevan, Saskatchewan, Canada |
| Career Start: | 1955 |
| Career End: | 1972 |
Allan Douglas Nicholson (April 26, 1936 – December 9, 1978) was a Canadian ice hockey left winger. Born in Estevan, Saskatchewan, he played in 19 games for the Boston Bruins during the 1955–56 and 1956–57 seasons and recorded one assist. The rest of his career, which lasted from 1955 to 1972, was mainly spent in the minor Western Hockey League.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 1951–52 | Estevan Miners | SIHA | — | — | — | — | — | — | — | — | — | — | ||
| 1952–53 | Humboldt Indians | SJHL | 40 | 6 | 9 | 15 | 24 | 12 | 3 | 1 | 4 | 2 | ||
| 1953–54 | Humboldt Indians | SJHL | 47 | 18 | 22 | 40 | 59 | 5 | 1 | 0 | 1 | 10 | ||
| 1953–54 | Humboldt Indians | M-Cup | — | — | — | — | — | 5 | 1 | 1 | 2 | 2 | ||
| 1954–55 | Humboldt Indians | SJHL | 38 | 37 | 34 | 71 | 52 | 10 | 6 | 7 | 13 | 8 | ||
| 1954–55 | Humboldt Indians | M-Cup | — | — | — | — | — | 5 | 1 | 1 | 2 | 2 | ||
| 1955–56 | Boston Bruins | NHL | 14 | 0 | 0 | 0 | 4 | — | — | — | — | — | ||
| 1955–56 | Hershey Bears | AHL | 38 | 9 | 15 | 24 | 32 | — | — | — | — | — | ||
| 1956–57 | Boston Bruins | NHL | 5 | 0 | 1 | 1 | 0 | — | — | — | — | — | ||
| 1956–57 | Hershey Bears | AHL | 55 | 22 | 27 | 49 | 51 | 3 | 0 | 0 | 0 | 2 | ||
| 1957–58 | Springfield Indians | AHL | 61 | 14 | 19 | 33 | 38 | 13 | 0 | 2 | 2 | 10 | ||
| 1958–59 | Vancouver Canucks | WHL | 69 | 36 | 51 | 87 | 78 | 3 | 1 | 1 | 2 | 0 | ||
| 1959–60 | Vancouver Canucks | WHL | 71 | 21 | 34 | 55 | 22 | — | — | — | — | — | ||
| 1960–61 | Winnipeg Warriors | WHL | 70 | 15 | 33 | 48 | 51 | — | — | — | — | — | ||
| 1961–62 | San Francisco Seals | WHL | 70 | 25 | 35 | 60 | 8 | 2 | 1 | 1 | 2 | 0 | ||
| 1962–63 | San Francisco Seals | WHL | 70 | 27 | 35 | 62 | 4 | 17 | 5 | 9 | 14 | 6 | ||
| 1963–64 | San Francisco Seals | WHL | 69 | 24 | 30 | 54 | 31 | 11 | 6 | 8 | 14 | 4 | ||
| 1964–65 | San Francisco Seals | WHL | 70 | 28 | 30 | 58 | 37 | — | — | — | — | — | ||
| 1965–66 | San Francisco Seals | WHL | 70 | 23 | 28 | 51 | 23 | 7 | 1 | 0 | 1 | 0 | ||
| 1966–67 | San Diego Gulls | WHL | 72 | 25 | 27 | 52 | 24 | — | — | — | — | — | ||
| 1967–68 | San Diego Gulls | WHL | 72 | 28 | 33 | 61 | 23 | 7 | 3 | 2 | 5 | 4 | ||
| 1968–69 | San Diego Gulls | WHL | 74 | 22 | 33 | 55 | 49 | 7 | 3 | 5 | 8 | 4 | ||
| 1969–70 | San Diego Gulls | WHL | 72 | 28 | 25 | 53 | 14 | 6 | 1 | 5 | 6 | 10 | ||
| 1970–71 | San Diego Gulls | WHL | 72 | 28 | 44 | 72 | 27 | 6 | 2 | 1 | 3 | 8 | ||
| 1971–72 | San Diego Gulls | WHL | 72 | 26 | 36 | 62 | 26 | 4 | 0 | 0 | 0 | 2 | ||
| WHL totals | 993 | 356 | 474 | 830 | 417 | 70 | 23 | 32 | 55 | 38 | ||||
| NHL totals | 19 | 0 | 1 | 1 | 4 | — | — | — | — | — | ||||