John Bampfield (c. 1586 – c. 1657) of Poltimore and North Molton, Devon, England, was Member of Parliament for Tiverton (1621) and Devon (1628-9).
He was the eldest son and heir of Sir Amias Bampfield (died 1626), MP, of Poltimore and North Molton, by his wife Elizabeth Clifton, daughter of Sir John Clifton of Barrington Court, Somerset.
He matriculated at Exeter College, Oxford on 13 July 1604, aged 18. He was a student at the Middle Temple in 1607. In 1621 he was elected Member of Parliament for Tiverton, Devon. He was elected MP for Devon in 1628 and sat until 1629 when King Charles I decided to rule without parliament for eleven years.
Bampfield married Elizabeth Drake, daughter of Thomas Drake of Buckland and niece of Admiral Sir Francis Drake, by whom he had children including: