| Type: | town |
| Red Hill South | |
| State: | vic |
| Alternative Location Map: | Australia Victoria |
| Coordinates: | -38.384°N 145.024°W |
| Pushpin Label Position: | left |
| Lga: | Shire of Mornington Peninsula |
| Postcode: | 3937 |
| Stategov: | Nepean |
| Fedgov: | Flinders |
| Dist1: | 94.5 |
| Location1: | Melbourne |
| Dist2: | 16 |
| Location2: | Rosebud |
| Near-Nw: | Red Hill |
| Near-N: | Merricks North |
| Near-Ne: | Balnarring |
| Near-W: | Red Hill |
| Near-E: | Balnarring |
| Near-Sw: | Point Leo |
| Near-S: | Point Leo |
| Near-Se: | Balnarring |
| Local Map: | yes |
| Zoom: | 11 |
Red Hill South is a rural locality and township on the Mornington Peninsula in Melbourne, and is located in Victoria, Australia, approximately 64km (40miles) south-east of Melbourne's Central Business District, located within the Shire of Mornington Peninsula local government area. Red Hill South recorded a population of 708 at the 2021 census.
There are several wineries in the area and it is referred to as the 'hinterland' of the Mornington Peninsula.
Red Hill South Post Office opened on 22 January 1923.