The Royal Canadian Sea Cadets is a Canadian national youth program sponsored by the Canadian Armed Forces and the civilian Navy League of Canada. Administered by the Canadian Forces, the program is funded through the Department of National Defence, with the civilian partner providing support in the local community. Cadets are not members of the Canadian Armed Forces.

The Navy League of Canada is a nonprofit organization founded in 1895 and incorporated in 1918. Originally formed to promote maritime issues to Canadians, the Navy League is the non-governmental partner of the Department of National Defence and supports the Royal Canadian Sea Cadets program. The Navy League also independently delivers the Navy League Cadet program for boys and girls between the ages of nine and twelve.