Invercargill Passenger Transport Ltd was a bus company which operated public transport routes in Dunedin and Invercargill as well as school transport services in those cities as well as Queenstown and leisure and tourism transport services throughout the South Island of New Zealand

The public transport system of Otago centres around the cities of Dunedin and Queenstown, under the brand name Orbus. Public transport in the region is provided using buses and ferries. Despite sharing a name, the systems in Dunedin and Queenstown are isolated from one another.