The invention relates to an actuating device for actuating a frictional clutch, in particular for coupling a drive shaft of a motor vehicle engine to at least one transmission input shaft of a motor vehicle transmission, having an axially relocatable sliding sleeve for relocating a pressing plate of the frictional clutch and a swiveling lever engaging on the sliding sleeve to relocate the sliding sleeve, wherein the sliding sleeve is supported on the lever in the radial direction over the relocation path between two end positions of the lever. By means of the support function for the sliding sleeve provided by the lever, a relocating of the sliding sleeve at a suitable alignment for actuating the frictional clutch can be achieved without significant additional design effort, such that actuating of the frictional clutch is enabled by means of minor design effort.