South Esk

South Esk may refer to:
 * The southern tributary of the River Esk, Lothian, Midlothian and East Lothian, Scotland
 * River South Esk, Angus, Scotland
 * South Esk River, Tasmania, Australia
 * South Esk Pine (Callitris oblonga), conifer found in Tasmania
 * South Esk Pine Reserve, Tasmania, Australia
 * South Esk, New Brunswick, town in New Brunswick, Canada