A bumper beam for a vehicle that is lightweight and high in strength is provided. A bumper beam for a vehicle includes a first member and a second member. The first member includes a first top panel part, two first vertical wall parts, and two first flange parts. The second member includes a second top panel part, two second vertical wall parts, and two second flange parts. The second top panel part includes a protruding part that protrudes toward a side opposite to the first top panel part. The two second vertical wall parts are disposed such that the second vertical wall parts respectively face close the first vertical wall parts inside the first member. The two second flange parts are disposed such that the second flange parts are connected to the two second vertical wall parts and joined to the first flange parts, respectively.