Walter Earl Seibert (December 7, 1910 – May 12, 1990) was a Canadian ice hockey defenceman who played for 15 seasons for the Chicago Black Hawks, New York Rangers and Detroit Red Wings between 1931 and 1946. He was inducted into the Hockey Hall of Fame in 1963.
An accident during a January 28, 1937 game cast a shadow over Seibert's great career. Seibert and the legendary Howie Morenz became tangled up behind the Chicago net. Morenz fell awkwardly against the boards and broke his leg in several places. Morenz died in the hospital from complications of the injury several weeks later.
After his NHL retirement, Seibert served as coach of Eddie Shore's Springfield Indians.
Seibert was inducted into the Hockey Hall of Fame in 1963 and joined his father Oliver Seibert as the first father and son combination in the Hall of Fame. In 1998, he was ranked number 72 on The Hockey News' list of the 100 Greatest Hockey Players.
Siebert died following a battle with brain cancer on May 12, 1990.
In the 2009 book 100 Ranger Greats, the authors ranked Seibert at No. 61 all-time of the 901 New York Rangers who had played during the team's first 82 seasons.
| 1927–28 | Kitchener Greenshirts | OHA | — | — |
| 1927–28 | Kitchener Greenshirts | OHA Sr | 2 | — |
| 1928–29 | Kitchener Greenshirts | OHA | — | — |
| 1929–30 | Springfield Indians | CAHL | 84 | — |
| 1930–31 | Springfield Indians | CAHL | 96 | — |
| 1931–32 | New York Rangers | NHL | 88 | 14 |
| 1932–33 | New York Rangers | NHL | 92 | 14 |
| 1933–34 | New York Rangers | NHL | 66 | 4 |
| 1934–35 | New York Rangers | NHL | 86 | 6 |
| 1935–36 | New York Rangers | NHL | 6 | — |
| 1935–36 | Chicago Black Hawks | NHL | 21 | 0 |
| 1936–37 | Chicago Black Hawks | NHL | 46 | — |
| 1937–38 | Chicago Black Hawks | NHL | 38 | 12 |
| 1938–39 | Chicago Black Hawks | NHL | 57 | — |
| 1939–40 | Chicago Black Hawks | NHL | 35 | 8 |
| 1940–41 | Chicago Black Hawks | NHL | 52 | 12 |
| 1941–42 | Chicago Black Hawks | NHL | 52 | 0 |
| 1942–43 | Chicago Black Hawks | NHL | 48 | — |
| 1943–44 | Chicago Black Hawks | NHL | 40 | 2 |
| 1944–45 | Chicago Black Hawks | NHL | 13 | — |
| 1944–45 | Detroit Red Wings | NHL | 10 | 4 |
| 1945–46 | Indianapolis Capitals | AHL | 19 | — |
| 1945–46 | Detroit Red Wings | NHL | 18 | — |
| 1946–47 | Indianapolis Capitals | AHL | 0 | — |
– midseason replacement
| +Earl Seibert AHL coaching statistics |
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