Actuating handle for a door, having a handle for actuating a locking device arranged in the door, wherein the actuating handle has two stop elements which are arrangeable on opposite sides of a door, • wherein the handle for actuating the locking device is mounted in a first stop element so as to be rotatable about a first axis of rotation, • wherein the actuating handle furthermore has a blocking device , • wherein the blocking device has a release position, in which rotation of the handle about the first axis of rotation is enabled, and has a blocking position, in which rotation of the handle about the first axis of rotation is blocked by the blocking device , • wherein the actuating handle furthermore has an actuation mechanism for the blocking device , and • wherein the actuation mechanism has a slider element which is displaceable along a circle segment that is centred about the first axis of rotation, wherein a displacement of the slider element along the circle segment effects an actuation of the blocking device , characterized • in that the actuation mechanism for the blocking device is arranged on the first stop element , and the blocking device is arranged between the first stop element and a second stop element , • in that the actuation mechanism has a rotary slide and at least one pinion , wherein the rotary slide is mounted on the first stop element so as to be rotatable about the first axis of rotation and carries or has the slider element , wherein the pinion is mounted on the stop element so as to be rotatable about a second axis of rotation, and wherein the rotary slide is operatively connected to the pinion in such a way that a rotation of the rotary slide about the first axis of rotation effects an actuation of the blocking device from the release position into the blocking position and/or vice versa, and • in that the slider element projects in the direction of the first axis of rotation through an end face of the stop element that faces towards the handle . • wherein the handle for actuating the locking device is mounted in a first stop element so as to be rotatable about a first axis of rotation, • wherein the actuating handle furthermore has a blocking device , • wherein the blocking device has a release position, in which rotation of the handle about the first axis of rotation is enabled, and has a blocking position, in which rotation of the handle about the first axis of rotation is blocked by the blocking device , • wherein the actuating handle furthermore has an actuation mechanism for the blocking device , and • wherein the actuation mechanism has a slider element which is displaceable along a circle segment that is centred about the first axis of rotation, wherein a displacement of the slider element along the circle segment effects an actuation of the blocking device , • in that the actuation mechanism for the blocking device is arranged on the first stop element , and the blocking device is arranged between the first stop element and a second stop element , • in that the actuation mechanism has a rotary slide and at least one pinion , wherein the rotary slide is mounted on the first stop element so as to be rotatable about the first axis of rotation and carries or has the slider element , wherein the pinion is mounted on the stop element so as to be rotatable about a second axis of rotation, and wherein the rotary slide is operatively connected to the pinion in such a way that a rotation of the rotary slide about the first axis of rotation effects an actuation of the blocking device from the release position into the blocking position and/or vice versa, and • in that the slider element projects in the direction of the first axis of rotation through an end face of the stop element that faces towards the handle . <EOS>