Leagues Alphabetically
- CAHA — Canadian Amateur Hockey Association
- CAHL — Central Alberta Hockey League (1955-1964)
- CAHL — Canadian Amateur Hockey League
- CAHL-I — Canadian Amateur Hockey League - Intermediate
- Cal-Pro — California Professional Hockey League
- Can-Am — Canadian-American Hockey League
- CanPro — Canadian Professional Hockey League
- CASH — Canadian-American Senior Hockey League
- CBMHL — Cape Breton Major Hockey League
- CBSHL — Cape Breton Senior Hockey League
- CCAU — Canadian Colleges Athletic Union
- CCHA — Central Collegiate Hockey Association
- CCJHL — Calgary City Junior Hockey League
- CCPHL — City of Chicago Professional Hockey League
- CCSHL — Calgary City Senior Hockey League
- CCSHL — Central Canada Senior Hockey League (1977-1978)
- CEGEP — Quebec College Prep
- CHA — Canadian Hockey Association
- CHL — Central Hockey League (1968-1985)
- CHL — Central Hockey League (1925-1941)
- CHL — Central Hockey League (1992 to date)
- CIAU — Canadian Inteuniversity Athletic Union
- CIHL — Canadian Intermediate Hockey League
- CIHL — Canadian Intermediate Hockey League
- CIHU — Canadian Intercollegiate Hockey Union
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