John Roper (died 1618) was an English peer, created Baron Teynham in 1616.

[3] Bearing strong Catholic connections, his uncle's wife, Margaret Roper, was the daughter of Sir Thomas More.

[6] Upon the accession of James I, Roper was the first of the gentry in his county to proclaim the new king, for which service he was knighted in 1616 (although according to other sources he may have already been knighted by Queen Elizabeth in 1587)[7] and raised to the peerage as Lord Teynham on the same day.

King James hoped to grant the office to his grasping favourite, George Villiers, 1st Duke of Buckingham, and viewed Roper as an obstacle to the plan.

[3] They had three children, including; John Roper's first wife Elizabeth died in 1567.