Provincial Road 342 (PR 342) is a 57.2-kilometre-long (35.5 mi) north–south highway in the Pembina Valley and Westman regions of Manitoba, Canada.

PR 342 begins in the Municipality of Louise at the southern edge of Clearwater at a junction with PTH 3A.

In the centre of town, the highway makes a sharp right onto 11th Street N, following it northward through neighbourhoods before leaving Clearwater as it crosses another bridge over Cypress Creek, where the pavement transitions into gravel.

Entering the Rural Municipality of Argyle, it rises back out of the valley to run concurrently with PR 253, with the two heading due west along the northern side of Rock Lake before making a sharp right turn at a junction with an access road to the lake.

Entering the town of Cypress River after crossing a former railway, the highway becomes paved as it travels along the western edge of downtown before coming to an end at a junction with PTH 2 (Red Coat Trail).