The Canadian Efficiency Decoration (ED) was a Canadian military award given to officers of the Non-Permanent Active Militia, RCAF Auxiliary and Reserve who completed twenty years of meritorious military service.

Similar Efficiency Decorations were also awarded by other Commonwealth countries.

A bar was issued for an additional 20 years of meritorious service.

[1] Time spent in war service counted double towards the 20 year requirement and time spent in the ranks counted as half.

Eligible members who entered the Canadian Forces before 1 September 1939 continued to be eligible for award of the Canadian Efficiency Decoration and bars to the decoration.