A brazing sheet that is usable in brazing performed in an inert gas atmosphere or in a vacuum without using a flux, comprising: a core material having a chemical composition that contains Mg: 0.20 mass% or more and 1.3 mass% or less, wherein the core material optionally further contains one or two or more from among: Mn: 0.30 mass% or more and 2.0 mass% or less, Si: 0.30 mass% or more and 1.0 mass% or less, Fe: less than 1.0 mass%, Cu: 1.0 mass% or less, Ti: less than 0.10 mass%, Zr: less than 0.30 mass%, Cr: less than 0.30 mass%, Zn: 0.10 mass% or more and 3.0 mass% or less, In: 0.010 mass% or more and 0.10 mass% or less, and Sn: 0.010 mass% or more and 0.10 mass% or less, the remainder being Al and unavoidable impurities; and a filler material layered on the core material and having a chemical composition that contains Si: 6.0 mass% or more and 13.0 mass% or less, Bi: 0.0040 mass% or more and 0.070 mass% or less, and Mg: 0.050 mass% or more and less than 0.10 mass%, wherein the filler material further contains one or two or more from among: Sb: 0.0070 mass% or more and 0.050 mass% or less, Pb: 0.0040 mass% or more and 0.070 mass% or less, Ba: 0.0040 mass% or more and 0.070 mass% or less, Na: 0.0020 mass% or more and 0.020 mass% or less, and Sr: 0.0020 mass% or more and 0.050 mass% or less, and wherein the filler material optionally further contains one or two or more from among: Fe: 0.050 mass% or more and 0.80 mass% or less, Mn: 0.050 mass% or more and 0.20 mass% or less, and Ti: 0.010 mass% or more and 0.15 mass% or less, Zn: 0.050 mass% or more and 3.0 mass% or less, Cu: 0.020 mass% or more and 1.0 mass% or less, Li: less than 0.0040 mass%, Be: less than 0.0040 mass%, and Ca: less than 0.0030 mass%, the remainder being Al and unavoidable impurities. a core material having a chemical composition that contains Mg: 0.20 mass% or more and 1.3 mass% or less, wherein the core material optionally further contains one or two or more from among: Mn: 0.30 mass% or more and 2.0 mass% or less, Si: 0.30 mass% or more and 1.0 mass% or less, Fe: less than 1.0 mass%, Cu: 1.0 mass% or less, Ti: less than 0.10 mass%, Zr: less than 0.30 mass%, Cr: less than 0.30 mass%, Zn: 0.10 mass% or more and 3.0 mass% or less, In: 0.010 mass% or more and 0.10 mass% or less, and Sn: 0.010 mass% or more and 0.10 mass% or less, the remainder being Al and unavoidable impurities; and a filler material layered on the core material and having a chemical composition that contains Si: 6.0 mass% or more and 13.0 mass% or less, Bi: 0.0040 mass% or more and 0.070 mass% or less, and Mg: 0.050 mass% or more and less than 0.10 mass%, wherein the filler material further contains one or two or more from among: Sb: 0.0070 mass% or more and 0.050 mass% or less, Pb: 0.0040 mass% or more and 0.070 mass% or less, Ba: 0.0040 mass% or more and 0.070 mass% or less, Na: 0.0020 mass% or more and 0.020 mass% or less, and Sr: 0.0020 mass% or more and 0.050 mass% or less, and wherein the filler material optionally further contains one or two or more from among: Fe: 0.050 mass% or more and 0.80 mass% or less, Mn: 0.050 mass% or more and 0.20 mass% or less, and Ti: 0.010 mass% or more and 0.15 mass% or less, Zn: 0.050 mass% or more and 3.0 mass% or less, Cu: 0.020 mass% or more and 1.0 mass% or less, Li: less than 0.0040 mass%, Be: less than 0.0040 mass%, and Ca: less than 0.0030 mass%, the remainder being Al and unavoidable impurities.