Morphett Street is a main road in the west of the central business district (CBD) of Adelaide, South Australia. It runs north-south, between North and South Terraces.
Morphett Street was named after Sir John Morphett, a prominent pioneer, whose votes at a meeting on 10 February 1837, (including numerous proxies), were critical in confirming the site of Adelaide.
The southern half of Morphett Street, between Grote Street and South Terrace, was originally named Brown Street after John Brown, the first Immigration Officer of South Australia. Brown Street was subsumed into the expanded Morphett Street in August 1967. The Brown Street Memorial in Whitmore Square maintains the commemoration of John Brown.
Morphett Street passes around two of the five squares in the Adelaide CBD: Light Square and Whitmore Square.
34°55′44″S 138°35′38″E / 34.928948°S 138.593890°E