| Position: | Right Wing |
| Shoots: | Right |
| Height Ft: | 5 |
| Height In: | 9 |
| Weight Lb: | 170 |
| Played For: | Brooklyn Americans Montreal Canadiens |
| Birth Date: | 9 July 1915 |
| Birth Place: | Toronto, Ontario, Canada |
| Career Start: | 1938 |
| Career End: | 1951 |
William Arthur Summerhill (July 9, 1915 – October 29, 1978) was a Canadian ice hockey forward who played 72 games in the National Hockey League for the Montreal Canadiens and Brooklyn Americans between 1938 and 1942. The rest of his career, which lasted from 1938 to 1951, was mainly spent in the minor American Hockey League. He was born in Toronto, Ontario.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 1937–38 | Verdun Maple Leafs | MCHL | 22 | 16 | 20 | 36 | 20 | 8 | 8 | 1 | 9 | 18 | ||
| 1937–38 | Montreal Canadiens | NHL | — | — | — | — | — | 1 | 0 | 0 | 0 | 0 | ||
| 1938–39 | Montreal Canadiens | NHL | 43 | 6 | 10 | 16 | 28 | 2 | 0 | 0 | 0 | 2 | ||
| 1938–39 | New Haven Eagles | IAHL | 6 | 1 | 2 | 3 | 0 | — | — | — | — | — | ||
| 1939–40 | Montreal Canadiens | NHL | 13 | 3 | 2 | 5 | 24 | — | — | — | — | — | ||
| 1939–40 | New Haven Eagles | IAHL | 27 | 14 | 27 | 41 | 16 | 3 | 1 | 1 | 2 | 2 | ||
| 1940–41 | Cleveland Barons | IAHL | 49 | 14 | 13 | 27 | 48 | 8 | 2 | 2 | 4 | 8 | ||
| 1941–42 | Brooklyn Americans | NHL | 16 | 5 | 5 | 10 | 18 | — | — | — | — | — | ||
| 1941–42 | Springfield Indians | AHL | 36 | 21 | 28 | 49 | 42 | 5 | 5 | 1 | 6 | 2 | ||
| 1942–43 | Buffalo Bisons | AHL | 56 | 41 | 27 | 68 | 64 | 9 | 5 | 9 | 14 | 2 | ||
| 1943–44 | Toronto Army Daggers | OHA Sr | 1 | 0 | 0 | 0 | 0 | — | — | — | — | — | ||
| 1944–45 | Toronto Shamrocks | TIHL | 14 | 13 | 11 | 24 | 16 | 4 | 7 | 2 | 9 | 4 | ||
| 1944–45 | Toronto Army Daggers | TNDHL | — | — | — | — | — | 3 | 5 | 5 | 10 | 0 | ||
| 1945–46 | New Haven Ramblers | AHL | 21 | 5 | 7 | 12 | 16 | — | — | — | — | — | ||
| 1945–46 | Fort Worth Rangers | USHL | 13 | 4 | 3 | 7 | 8 | — | — | — | — | — | ||
| 1946–47 | Springfield Indians | AHL | 61 | 26 | 30 | 56 | 37 | 2 | 1 | 1 | 2 | 0 | ||
| 1947–48 | Springfield Indians | AHL | 67 | 27 | 47 | 74 | 22 | — | — | — | — | — | ||
| 1948–49 | Springfield Indians | AHL | 65 | 30 | 36 | 66 | 36 | 3 | 3 | 4 | 7 | 2 | ||
| 1949–50 | Springfield Indians | AHL | 25 | 10 | 15 | 25 | 18 | — | — | — | — | — | ||
| 1950–51 | New Haven Eagles | AHL | 27 | 12 | 11 | 23 | 16 | — | — | — | — | — | ||
| 1950–51 | Portland Eagles | PCHL | 40 | 15 | 16 | 31 | 10 | 6 | 1 | 0 | 1 | 4 | ||
| AHL totals | 407 | 186 | 214 | 400 | 299 | 27 | 16 | 17 | 33 | 14 | ||||
| NHL totals | 72 | 14 | 17 | 31 | 70 | 3 | 0 | 0 | 0 | 2 | ||||