Galley cooling system suitable for use in an aircraft, the galley cooling system comprising: - a cooling unit adapted to provide a cooling fluid, and - a trolley compartment comprising a front side access opening, a back wall arranged opposite to the front side access opening and two sidewalls (24, 26), wherein the trolley compartment is adapted to accommodate at least one trolley (28a, 28b), wherein a cooling fluid inlet is provided in a lower region of a first side wall of the trolley compartment, the cooling fluid inlet being connected to the cooling unit so as to supply cooling fluid provided by the cooling unit to the trolley compartment, wherein a cooling fluid outlet is provided in an upper region of the first side wall of the trolley compartment, the cooling fluid outlet being adapted to discharge cooling fluid heated upon circulating through the trolley compartment from the trolley compartment, and wherein a control unit is adapted to control a volume flow, a speed and/or a direction of flow of the cooling fluid supplied to the trolley compartment from the cooling unit, in such a manner that the cooling fluid entering the trolley compartment via the cooling fluid inlet is guided from the first side wall of the trolley compartment through a lower region of the trolley compartment and across an outer surface of a bottom wall (52a, 52b) of the at least one trolley (28a, 28b) in the direction of a second sidewall of the trolley compartment, thereafter is guided across an inner surface of the second sidewall of the trolley compartment and across an outer surface of a side wall (31a, 31b) of the at least one trolley (28a, 28b) which faces the second side wall of the trolley compartment, and finally is guided to flow through an upper region of the trolley compartment along an inner surface of a top wall of the trolley compartment and across an outer surface of a top wall (54a, 54b) of the at least one trolley (28a, 28b) back in the direction of the first sidewall of the trolley compartment. - a cooling unit adapted to provide a cooling fluid, and - a trolley compartment comprising a front side access opening, a back wall arranged opposite to the front side access opening and two sidewalls (24, 26), wherein the trolley compartment is adapted to accommodate at least one trolley (28a, 28b), wherein a cooling fluid inlet is provided in a lower region of a first side wall of the trolley compartment, the cooling fluid inlet being connected to the cooling unit so as to supply cooling fluid provided by the cooling unit to the trolley compartment, wherein a cooling fluid outlet is provided in an upper region of the first side wall of the trolley compartment, the cooling fluid outlet being adapted to discharge cooling fluid heated upon circulating through the trolley compartment from the trolley compartment, and wherein a control unit is adapted to control a volume flow, a speed and/or a direction of flow of the cooling fluid supplied to the trolley compartment from the cooling unit, in such a manner that the cooling fluid entering the trolley compartment via the cooling fluid inlet is guided from the first side wall of the trolley compartment through a lower region of the trolley compartment and across an outer surface of a bottom wall (52a, 52b) of the at least one trolley (28a, 28b) in the direction of a second sidewall of the trolley compartment, thereafter is guided across an inner surface of the second sidewall of the trolley compartment and across an outer surface of a side wall (31a, 31b) of the at least one trolley (28a, 28b) which faces the second side wall of the trolley compartment, and finally is guided to flow through an upper region of the trolley compartment along an inner surface of a top wall of the trolley compartment and across an outer surface of a top wall (54a, 54b) of the at least one trolley (28a, 28b) back in the direction of the first sidewall of the trolley compartment. wherein a cooling fluid inlet is provided in a lower region of a first side wall of the trolley compartment, the cooling fluid inlet being connected to the cooling unit so as to supply cooling fluid provided by the cooling unit to the trolley compartment, wherein a cooling fluid outlet is provided in an upper region of the first side wall of the trolley compartment, the cooling fluid outlet being adapted to discharge cooling fluid heated upon circulating through the trolley compartment from the trolley compartment, and wherein a control unit is adapted to control a volume flow, a speed and/or a direction of flow of the cooling fluid supplied to the trolley compartment from the cooling unit, in such a manner that the cooling fluid entering the trolley compartment via the cooling fluid inlet is guided from the first side wall of the trolley compartment through a lower region of the trolley compartment and across an outer surface of a bottom wall (52a, 52b) of the at least one trolley (28a, 28b) in the direction of a second sidewall of the trolley compartment, thereafter is guided across an inner surface of the second sidewall of the trolley compartment and across an outer surface of a side wall (31a, 31b) of the at least one trolley (28a, 28b) which faces the second side wall of the trolley compartment, and finally is guided to flow through an upper region of the trolley compartment along an inner surface of a top wall of the trolley compartment and across an outer surface of a top wall (54a, 54b) of the at least one trolley (28a, 28b) back in the direction of the first sidewall of the trolley compartment.