The Princes Highway may refer to:
- Princes Highway, the Australian highway that joins Sydney to Port Augusta, via Melbourne.
- Princes Freeway, the subsection of the road, between Traralgon in the east, through Melbourne, to Geelong in the west.
- Old Princes Highway, Victoria, a former subsection of the road, between Traralgon in the east to Berwick in the west.
- Princes Motorway, the subsection of the road, between the southern suburbs of Sydney to the southern perimeter of the Wollongong region.
- Princes Freeway, the subsection of the road, between Traralgon in the east, through Melbourne, to Geelong in the west.