John Blagrave (1630 – March 1704) was an English politician who sat in the House of Commons at various times between 1660 and 1685. Blagrave was the son of Anthony Blagrave of Bulmershe Court at Earley in Berkshire and his wife Dorothy, daughter of Thomas Dolman of Shaw House in the same county. The Blagraves were a branch of that family of Calcot Park, Berkshire. He was baptised in the parish church at Sonning on 12 August 1630. He was educated at St John's College, Oxford being awarded BA in 1651 and MA in 1653. He was a Fellow of St John's and was later at Middle Temple in 1655.