This is a list of the seasons of the Ottawa City Junior League:
- 1924-25 Ottawa City Junior League
- 1927-28 Ottawa City Junior League
- 1928-29 Ottawa City Junior League
- 1929-30 Ottawa City Junior League
- 1930-31 Ottawa City Junior League
- 1931-32 Ottawa City Junior League
- 1932-33 Ottawa City Junior League
- 1933-34 Ottawa City Junior League
- 1934-35 Ottawa City Junior League
- 1935-36 Ottawa City Junior League
- 1936-37 Ottawa City Junior League
- 1937-38 Ottawa City Junior League
- 1938-39 Ottawa City Junior League
- 1939-40 Ottawa City Junior League
- 1940-41 Ottawa City Junior League
- 1941-42 Ottawa City Junior League
- 1942-43 Ottawa City Junior League
- 1943-44 Ottawa City Junior League
- 1944-45 Ottawa City Junior League
- 1945-46 Ottawa City Junior League
- 1946-47 Ottawa City Junior League
- 1947-48 Ottawa City Junior League
- 1948-49 Ottawa City Junior League
- 1949-50 Ottawa City Junior League
- 1950-51 Ottawa City Junior League
- 1951-52 Ottawa City Junior League
- 1952-53 Ottawa City Junior League
- 1953-54 Ottawa City Junior League
- 1954-55 Ottawa City Junior League
- 1955-56 Ottawa City Junior League
- 1956-57 Ottawa City Junior League
- 1963-64 Ottawa City Junior League