Middlemarch is a small town in the Otago Region of New Zealand's South Island. It lies at the foot of the Rock and Pillar Range of hills in the broad Strath-Taieri valley, through which flows the middle reaches of the Taieri River. Since local government reorganisation in the late 1980s, Midlemarch and much of the Strath-Taieri has been administered as part of Dunedin city, the centre of which lies some 80 km to the southeast.