A walk-behind lawnmower having a rear shield (40) is disclosed. The rear shield (40) extends downward from a rear end part (11a) of a housing (11) and is in the form of an elastic sheet. The sheet (40) has a thin-walled part (49) formed in a central site (48) in a heightwise direction between an upper end part (41) and a lower end part (42), the upper end part being attached to the rear end part of the housing. The thin-walled part has a thickness (t2) set to be smaller than a thickness (t1) of other parts (47a, 47b).
