John Boteler, 1st Baron Boteler of Brantfield, (c. 1566 – 27 May 1637) was an English politician who sat in the House of Commons from 1625 to 1626.
Boteler was the son and heir of Sir Henry Boteler of Hatfield Woodhall and of Brantfield, Hertfordshire, by his first wife, Catharine, daughter of Robert Waller, of Hadley, Middlesex. He was knighted at Greenwich in July, 1607, and succeeded his father on 20 January 1609, aged 43. He was created baronet of Hatfield Woodhall on 12 April 1620. In 1625, he was elected Member of Parliament for Hertfordshire. He was re-elected M.P. for Hertfordshire in 1626. He was created Baron Boteler of Brantfield, co. Hertford, on 30 July 1628.
Boteler married, before 1609, Elizabeth Villiers, daughter of Sir George Villiers, of Brokesby, co. Leicester, half-sister to George Villiers, 1st Duke of Buckingham. They had two sons and six daughters,
Boteler died on 27 May 1637, at St. Martin's-in-the-Fields, aged about 71, and was buried at Higham Gobion, Bedfordshire. He was succeeded by his son, William.