Canadian Screen Award for Best Feature Length Documentary

The Academy of Canadian Cinema and Television presents an annual award for Best Feature Length Documentary. First presented in 1968 as part of the Canadian Film Awards, it became part of the Genie Awards in 1980 and the contemporary Canadian Screen Awards in 2013.
Under current Academy regulations, the awards for Best Feature Length Documentary and Best Short Documentary can be collapsed into a single award for Best Documentary if either category receives three or fewer eligible submissions, but remain separate if both categories surpass three submissions.