Manitoba Provincial Highway 68 (PTH 68) is an east-west provincial highway in the Parkland and Interlake regions of Manitoba, Canada.

Rose Du Lac and terminates at PTH 8 11 kilometres (6.8 miles) south of Riverton.

Between the eastern junction with PTH 6 at Eriksdale and its western terminus, the highway is part of the Northern Woods and Water Route.

The most notable portion of PTH 68 is the bridge over Lake Manitoba at The Narrows.

In 1987, the highway was extended to its current westbound terminus, replacing PR 235 between Ste.