thumb|right|The entrance to Southward Car Museum from Otaihanga Road
The Southward Car Museum is an automobile museum and event centre in Otaihanga, New Zealand. It was established by Len Southward in the 1970s to house his collection of over 450 vehicles and several aircraft and is now run by a charitable trust.
Having established the largest private car collection in Australasia, in 1976 Southward purchased a site on which to establish a museum open to the public.
Ground was broken on the museum site in 1971, but construction wasn't given council consent until 1977. The museum officially opened on 22 December 1979.
thumb|Len and Vera Southward Legacy exhibit
In 2020 a new exhibit in the museum was opened, detailing Len and Vera's lives and achievements, including new digital and material installations.