A spout (1), particularly for washbasins and the like, with a device for the automatic activation of a valve body (3), comprising a tubular body (2) that can be associated with a valve body (3) of a washbasin at a first end (2a) thereof and is associated, at a second end (2b) thereof, with an aerator (4); the aerator (4) can be sealingly connected to the valve body (3) of the washbasin by means of a pipe (5) that lies inside the tubular body (2), the tubular body (2) comprising a first tubular element (6) and a second tubular element (7), which are associated to each other, without mutual contact, by means of an insulating element (8), the second tubular element (7), which is associated with the aerator (4), being associated with contact sensor means (9) that are connected to means (10) for actuating the valve body (3), forming a contact-sensitive region arranged at the end of the spout of the washbasin.