AAC Blake is a white-hulled, spring oat (Avena sativa L.) cultivar bred by the Ottawa Research and Development Center of Agriculture and Agri-Food Canada in Ottawa, ON. It was supported for registration by the Ontario Cereal Crops Committee in January 2015 and registered in Canada on 12 Feb. 2016 (Canadian Food Inspection Agency registration no. 7911). AAC Blake yielded significantly higher than control cultivars in both eastern and western Canada. It had significantly better resistance to crown rust (Puccinia coronata Corda f. sp. avenae Eriks.), higher beta-glucan level, but lower groat content than control cultivars.