A walk-behind lawn mower includes a cutter and a housing covering the cutter for allowing rotation of the cutter to cut grass. The housing includes a front wall portion covering a front part of the cutter and a portion other than the front wall portion. The front wall portion extends laterally of the housing. The front wall portion has a thickness more than twice a thickness of the portion other than the front wall portion. The front wall portion has a downwardly convex bottom surface, and serves as a handle for use in lifting up the lawn mower.
