Wisconsin Highway 341

State Trunk Highway 341 (STH 341, WIS 341), better known as Miller Park Way and currently Brewers Boulevard, refers to a former unsigned route designation of a segment of the oldest freeway in Milwaukee, Wisconsin, United States. It connects Interstate 94 (I-94) to WIS 59 (National Avenue), with a single set of off-ramps to Canal Street and American Family Field's parking lots.

The road is currently designated as Brewers Boulevard within Milwaukee city limits (including the American Family Field campus). South of National Avenue, the roadway continues as Miller Park Way in West Milwaukee village limits, despite the stadium's new naming rights; the village's board voted down a rename based on a misunderstanding that the Brewers would not reimburse the village and all businesses along the Miller Park Way corridor for associated costs involving an address change. Re-entering Milwaukee at Lincoln Avenue, the roadway then continues on as South 43rd Street for its traditional position in the Milwaukee street grid.