A combination weigher comprising: a plurality of weighing hoppers arranged in a circular shape around a casing , the plurality of weighing hoppers being used in the combination weigher for finding a combination of objects whose total weight falls within a predetermined weight range and discharging the objects making up the combination, each of the plurality of weighing hoppers comprising a tubular hopper body having an upper opening and a lower opening and being fed with the objects which are used to find the combination, through the upper opening, and a discharge gate which opens and closes the lower opening of the tubular hopper body , wherein the tubular hopper body is constituted by a tubular body having 6 or more side walls (W1-W8) connected together in an annular shape, the tubular body having a horizontal cross section having a contour of a shape having convex regions and being different from a rectangular shape, and wherein each internal angle (θ1- θ6) between adjacent side walls of the 6 or more side walls is equal to or greater than 90 degrees; and a plurality of load cells disposed inside of the casing and supporting the plurality of weighing hoppers, respectively, via coupling members penetrating the casing, wherein each adjacent side wall (W41, W43) of the plurality of weighing hoppers has a flat plate shape; and each of the surfaces of the adjacent side walls (W41, W43) and a center of the circle along which the plurality of weighing hoppers are arranged are included within the same plane (L1, L2, L3, L4,..., L11, L12), wherein the side walls (W42) of the plurality of weighing hoppers located at an opposite side of the casing have a circular-arc horizontal cross section. a plurality of weighing hoppers arranged in a circular shape around a casing , the plurality of weighing hoppers being used in the combination weigher for finding a combination of objects whose total weight falls within a predetermined weight range and discharging the objects making up the combination, each of the plurality of weighing hoppers comprising a tubular hopper body having an upper opening and a lower opening and being fed with the objects which are used to find the combination, through the upper opening, and a discharge gate which opens and closes the lower opening of the tubular hopper body , wherein the tubular hopper body is constituted by a tubular body having 6 or more side walls (W1-W8) connected together in an annular shape, the tubular body having a horizontal cross section having a contour of a shape having convex regions and being different from a rectangular shape, and wherein each internal angle (θ1- θ6) between adjacent side walls of the 6 or more side walls is equal to or greater than 90 degrees; and a plurality of load cells disposed inside of the casing and supporting the plurality of weighing hoppers, respectively, via coupling members penetrating the casing, wherein each adjacent side wall (W41, W43) of the plurality of weighing hoppers has a flat plate shape; and each of the surfaces of the adjacent side walls (W41, W43) and a center of the circle along which the plurality of weighing hoppers are arranged are included within the same plane (L1, L2, L3, L4,..., L11, L12), wherein the side walls (W42) of the plurality of weighing hoppers located at an opposite side of the casing have a circular-arc horizontal cross section. <EOS>