Middlemarch Museum is a local history museum at 5 Aberafon Street in Middlemarch, Dunedin, at the end of the Otago Central Rail Trail. It calls itself the little museum with the big history, and it covers Strath Taieri's story from pre-European times through railway, farming, mining, commerce, health, schooling, faith and leisure. Its collection includes railway memorabilia and archives, and two of its rooms are railway vans. It also has a Platypus Submarine, pre-European artefacts and farming and mining memorabilia.
The museum is open on Fridays, Saturdays and Sundays from 11:30am to 1:30pm from 1 October to 31 January. From 1 February to 30 April it is open Thursday to Monday at the same times. At other times it can be opened on request by phone on 03 464 3696 or 022 060 9898. The museum says its railway story is central to the township, which the railway founded in 1891. The website also carries new stories about the East of the Rock and Pillar area.