A thermoplastic elastomer composition comprising: 100 parts by mass of a hydrogenated block copolymer (a); from 3 to 50 parts by mass of a polypropylene-based resin (b); from 5 to 100 parts by mass of a polyphenylene ether resin (c); and from 50 to 200 parts by mass of a non-aromatic softener (d), wherein the hydrogenated block copolymer (a) comprises: a hydrogenated block copolymer (a-1') that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A1 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B1 comprising a conjugated diene compound monomer unit as a primary component; and a hydrogenated block copolymer (a-2) that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A2 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B2 comprising a conjugated diene compound monomer unit as a primary component, a weight average molecular weight of the hydrogenated block copolymer (a-1') is from 140,000 to 350,000, a weight average molecular weight of the hydrogenated block copolymer (a-2) is from 50,000 to 120,000, and a mass ratio ((a-1') / (a-2)) of the hydrogenated block copolymer (a-1') and the hydrogenated block copolymer (a-2) is from 70/30 to 95/5. 100 parts by mass of a hydrogenated block copolymer (a); from 3 to 50 parts by mass of a polypropylene-based resin (b); from 5 to 100 parts by mass of a polyphenylene ether resin (c); and from 50 to 200 parts by mass of a non-aromatic softener (d), wherein the hydrogenated block copolymer (a) comprises: a hydrogenated block copolymer (a-1') that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A1 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B1 comprising a conjugated diene compound monomer unit as a primary component; and a hydrogenated block copolymer (a-2) that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A2 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B2 comprising a conjugated diene compound monomer unit as a primary component, a weight average molecular weight of the hydrogenated block copolymer (a-1') is from 140,000 to 350,000, a weight average molecular weight of the hydrogenated block copolymer (a-2) is from 50,000 to 120,000, and a mass ratio ((a-1') / (a-2)) of the hydrogenated block copolymer (a-1') and the hydrogenated block copolymer (a-2) is from 70/30 to 95/5. a hydrogenated block copolymer (a-1') that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A1 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B1 comprising a conjugated diene compound monomer unit as a primary component; and a hydrogenated block copolymer (a-2) that is able to be formed by hydrogenating a block copolymer that comprises at least one polymer block A2 comprising a vinyl aromatic hydrocarbon compound monomer unit as a primary component and at least one polymer block B2 comprising a conjugated diene compound monomer unit as a primary component, a weight average molecular weight of the hydrogenated block copolymer (a-1') is from 140,000 to 350,000, a weight average molecular weight of the hydrogenated block copolymer (a-2) is from 50,000 to 120,000, and a mass ratio ((a-1') / (a-2)) of the hydrogenated block copolymer (a-1') and the hydrogenated block copolymer (a-2) is from 70/30 to 95/5.