Abstract: The invention relates to a gravity separation apparatus for separating a mixture of gas and/or one or more liquids of different densities under the influence of the force of gravity, the apparatus comprising an elongated vessel (1) including an inlet (2) for input of the mixture to be separated, a gas outlet (10) for the discharge of the separated gas and one or more liquid outlets (9, 21) for discharging the separated one or more liquids, wherein the vessel further comprises one or more perforated baffles (6, 7), arranged in the interior space of the vessel (1), for distributing the mixture flowing through so as to provide a more even distribution of the mixture flowing downstream of the baffles (6, 7), wherein the baffles (6, 7) are of an essentially concave shape.