A metal powder for additive manufacturing allows producing an additively manufactured product having few internal defects, little deformation caused by strain and excellent mechanical properties, and an additively manufactured product uses the same. The metal powder for additive manufacturing includes, by mass %, 14.0% to 24.0% of Ni, 2.0% to 8.0% of Mo, 10.5% to 20.0% of Co, 0.01% to 2.00% of Al, and 0.10% to 3.00% of Ti, the balance being Fe and unavoidable impurities. The additively manufactured product includes, by mass %, 14.0% to 24.0% of Ni, 2.0% to 8.0% of Mo, 10.5% to 20.0% of Co, 0.01% to 2.00% of Al, and 0.10% to 3.00% of Ti, the balance being Fe and unavoidable impurities. In a cross section of the additively manufactured product taken parallel to the build direction, there is fewer than 0.1 defect having an equivalent circle diameter of more than 20 μm per 1 mm2.