Rosser is a rural municipality in the Canadian province of Manitoba, lying adjacent to the northwest side of Winnipeg and part of the Winnipeg Metro Region. Its population as of the 2016 Census was 1,372.It is situated along Provincial Trunk Highway 6, and Winnipeg's Perimeter Highway. CentrePort Canada lies primarily in the eastern part of the RM, inside the Perimeter Highway. A small portion of Winnipeg James Armstrong Richardson International Airport also lies within the RM of Rosser.