Provincial Road 457 (PR 457) is a provincial road in the Westman Region of the Canadian province of Manitoba.

It connects the city of Brandon with Chater and Cottonwoods.

Provincial Road 457 is an east-west route and runs from PR 340 in Cottonwoods to its terminus at PTH 1A (1st Street North) in Brandon.

PR 457 is a paved road for its entire length.

The speed limit along this road is 90 kilometres per hour (56 mph).