| Birth Date: | January 24, 1942 |
| Birth Place: | Toronto, Ontario, Canada |
| Height Ft: | 6 |
| Height In: | 0 |
| Weight Lb: | 175 |
| Position: | Centre |
| Shoots: | Left |
| Played For: | Boston Bruins |
| Career Start: | 1962 |
| Career End: | 1975 |
William Arthur Knibbs (born January 24, 1942 – September 16, 2006) was a Canadian professional ice hockey player who played 53 games in the National Hockey League with the Boston Bruins during the 1964–65 season. The rest of his career, which lasted from 1962 to 1975, was mainly spent in the American Hockey League.
Knibbs scored seven goal for Boston in his lone NHL season. His first goal occurred on December 16, 1964 in the Bruins' 7-5 loss to the Chicago Blackhawks at Chicago Stadium.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 1959–60 | Barrie Flyers | OHA | 48 | 14 | 25 | 39 | 29 | 6 | 2 | 1 | 3 | 19 | ||
| 1960–61 | Niagara Falls Flyers | OHA | 48 | 22 | 35 | 57 | 31 | 7 | 4 | 1 | 5 | 2 | ||
| 1961–62 | Niagara Falls Flyers | OHA | 50 | 28 | 34 | 62 | 19 | 10 | 2 | 4 | 6 | 5 | ||
| 1961–62 | Kingston Frontenacs | EPHL | 1 | 0 | 0 | 0 | 0 | 7 | 1 | 2 | 3 | 0 | ||
| 1962–63 | Kingston Frontenacs | EPHL | 69 | 22 | 25 | 47 | 8 | 5 | 0 | 1 | 1 | 5 | ||
| 1963–64 | Minneapolis Bruins | CHL | 72 | 29 | 36 | 65 | 12 | 5 | 0 | 3 | 3 | 0 | ||
| 1964–65 | Boston Bruins | NHL | 53 | 7 | 10 | 17 | 4 | — | — | — | — | — | ||
| 1964–65 | Minneapolis Bruins | CHL | 16 | 11 | 8 | 19 | 10 | — | — | — | — | — | ||
| 1965–66 | Baltimore Clippers | AHL | 71 | 21 | 17 | 38 | 18 | — | — | — | — | — | ||
| 1966–67 | Baltimore Clippers | AHL | 70 | 16 | 17 | 33 | 24 | 9 | 2 | 2 | 4 | 4 | ||
| 1967–68 | Buffalo Bisons | AHL | 49 | 13 | 27 | 40 | 21 | 5 | 3 | 0 | 3 | 2 | ||
| 1968–69 | Buffalo Bisons | AHL | 68 | 13 | 38 | 51 | 38 | 6 | 2 | 3 | 5 | 0 | ||
| 1969–70 | Buffalo Bisons | AHL | 69 | 17 | 43 | 60 | 18 | 8 | 1 | 4 | 5 | 10 | ||
| 1970–71 | Seattle Totems | WHL | 39 | 14 | 17 | 31 | 4 | — | — | — | — | — | ||
| 1970–71 | Omaha Knights | CHL | 19 | 10 | 22 | 32 | 70 | 11 | 2 | 9 | 11 | 2 | ||
| 1971–72 | Providence Reds | AHL | 76 | 13 | 33 | 46 | 34 | 5 | 0 | 2 | 2 | 2 | ||
| 1972–73 | Providence Reds | AHL | 67 | 17 | 39 | 56 | 32 | 4 | 0 | 1 | 1 | 0 | ||
| 1973–74 | Rochester Americans | AHL | 38 | 9 | 25 | 34 | 6 | — | — | — | — | — | ||
| 1974–75 | Rochester Americans | AHL | 44 | 8 | 17 | 25 | 14 | 7 | 1 | 1 | 2 | 4 | ||
| AHL totals | 552 | 127 | 256 | 383 | 205 | 44 | 9 | 13 | 22 | 22 | ||||
| NHL totals | 53 | 7 | 10 | 17 | 4 | — | — | — | — | — | ||||