Morinish South is a rural locality in the Rockhampton Region, Queensland, Australia. In the , Morinish South had a population of 13 people.
The Fitzroy River enters the locality from the south (Wycarbah) and forms the south-western and western boundaries of the locality before exiting the locality to the north (Glenroy / Morinish).
Morinish South has the following mountains (from north to south):
The land use is predominantly grazing on native vegetation.
In the , Morinish South had "no people or a very low population".
In the , Morinish South had a population of 13 people.
There are no schools in Morinish South. The nearest government primary schools are Westwood State School in Westwood to the south-east and Ridgelands State School in Ridgelands to the north-east; however, some students in the locality may be too distant to attend either school. Also, there are no nearby secondary schools. The alternatives are distance education and boarding school.