A thermoplastic elastomer composition including:100 parts by mass of a hydrogenated block copolymer (a) ；from 10 to 50 parts by mass of a polypropylene resin (b) ；from 5 to 100 parts by mass of a polyphenylene ether resin (c)； andfrom 75 to 200 parts by mass of a non-aromatic softener (d), whereinthe hydrogenated block copolymer (a) contains a hydrogenated block copolymer (a-1) obtained by hydrogenation, the hydrogenated block copolymer (a-1) comprising at least one polymer block A1 including mainly a vinyl aromatic hydrocarbon compound monomer unit, and at least one polymer block B1 including mainly a conjugated diene compound monomer unit,a weight-average molecular weight of the hydrogenated block copolymer (a-1) is from 100,000 to 550,000, anda content of all vinyl aromatic hydrocarbon compound monomer units in the hydrogenated block copolymer (a-1) is more than 20% by mass and 50% by mass or less.
