A bicycle rear derailleur comprises a base member, a chain guide, an actuator, and a controller. The chain guide is movably coupled to the base member. The actuator is operatively coupled to the chain guide to move the chain guide relative to the base member. The controller is electrically connected to the actuator to move the chain guide relative to the base member from a current stop position to a target-stop position which is adjacent to the current stop position without another stop position between the current stop position and the target-stop position. The controller is configured to change, based on a front shift position of a front derailleur, at least one of the target-stop position and a temporary position in which the chain guide temporarily is in a shifting operation in which the chain guide moves from the current stop position to the target-stop position.