Bethune's Gully is a notable geological feature of northern Dunedin, in the South Island of New Zealand. It is located close to the suburb of Normanby towards the northern end of North East Valley. It preserves a number of acres of very old-growth forest and a large stand of exotic Douglas fir, and is an ecosystem directly below the cloud forest on the upper slopes of Mount Cargill. The gully was formed by the upper reaches of Lindsay Creek, a tributary of the Water of Leith which flows along North East Valley.