A handle for a door or window comprising control means designed to define a closed configuration and, respectively, an open configuration of the door or window; the means having at least one operating shaft rotatable and protruding from at least one surface of the door or window; the handle comprising at least: - a handgrip having a gripping portion and a base portion or neck facing, in use, the surface of the door or window; - means for stable coupling of the neck of the handgrip to the operating shaft in such a way as to form a single axis of rotation of the handgrip and of the operating shaft; - elastic means positioned between the handgrip and the operating shaft and configured to allow the maintaining or the return of the handgrip in a predetermined first position corresponding to the closed configuration of the door or window from a second open position of the door or window; - a removable device for associating the handgrip to the door or window, characterised in that the removable associating device comprises: - an annular element associated with the surface of the door or window surrounding the area of the door or window from which the operating shaft protrudes; the annular element having a cylindrical wall protruding towards the outside of the surface of the door or window, provided with a first plurality of teeth; - a bushing associated with the neck of the handgrip closing the neck housed in the stable coupling means and the elastic means; the bushing having an annular edge, facing towards the outside of the neck, provided with a second plurality of teeth, delimiting an inner chamber of the bushing; the bushing being configured for coupling and containing, in use, at least the cylindrical wall with the first plurality of teeth through a positioning of the handgrip in a third position, and a subsequent rotation of the handgrip to obtain a coupling between the first and the second plurality of teeth and define a stable connection of the handgrip to the door or window; - at least one slider for locking the coupling between the first and the second plurality of teeth, positioned in a radial seat made on the annular element and protruding between two successive teeth of the first plurality of teeth; the slider being movable in the seat between an advanced position of free rotation of the second plurality of teeth and a withdrawn position for locking the second plurality of teeth wherein the slider is between two successive teeth of the second plurality of teeth. - a handgrip having a gripping portion and a base portion or neck facing, in use, the surface of the door or window; - means for stable coupling of the neck of the handgrip to the operating shaft in such a way as to form a single axis of rotation of the handgrip and of the operating shaft; - elastic means positioned between the handgrip and the operating shaft and configured to allow the maintaining or the return of the handgrip in a predetermined first position corresponding to the closed configuration of the door or window from a second open position of the door or window; - a removable device for associating the handgrip to the door or window, - an annular element associated with the surface of the door or window surrounding the area of the door or window from which the operating shaft protrudes; the annular element having a cylindrical wall protruding towards the outside of the surface of the door or window, provided with a first plurality of teeth; - a bushing associated with the neck of the handgrip closing the neck housed in the stable coupling means and the elastic means; the bushing having an annular edge, facing towards the outside of the neck, provided with a second plurality of teeth, delimiting an inner chamber of the bushing; the bushing being configured for coupling and containing, in use, at least the cylindrical wall with the first plurality of teeth through a positioning of the handgrip in a third position, and a subsequent rotation of the handgrip to obtain a coupling between the first and the second plurality of teeth and define a stable connection of the handgrip to the door or window; - at least one slider for locking the coupling between the first and the second plurality of teeth, positioned in a radial seat made on the annular element and protruding between two successive teeth of the first plurality of teeth; the slider being movable in the seat between an advanced position of free rotation of the second plurality of teeth and a withdrawn position for locking the second plurality of teeth wherein the slider is between two successive teeth of the second plurality of teeth.