McKay Ridge is a ridge located in Whatcom County in Washington state. It is part of the Okanogan Range which is a sub-range of the North Cascades. It's situated north of the North Cascades Highway on land administered by Okanogan National Forest. The nearest higher peak is Majestic Mountain, to the northeast. Precipitation runoff from the ridge drains into Ross Lake via tributaries of the Skagit River.