An exhaust manifold includes a body portion and a flange portion. The body portion includes a first split body having a plurality of semi-cylindrical portions, and a second split body having a plurality of semi-cylindrical portions. The semi-cylindrical portions of the first and second split bodies overlie each other, respectively, and define branch pipes. The exhaust manifold includes a first weld bead and a plurality of second weld beads. The first weld bead welds the semi-cylindrical portions defining one of the branch pipes to each other from an outer surface side. The second weld beads weld an outer peripheral portion of the one of the branch pipes to an edge portion of opening in the flange portion. At least one of the second weld beads partially overlaps the first weld bead. End portions of neighboring second weld beads overlap each other and are separated from the first weld bead.