John Wenlock, 1st Baron Wenlock KG (c.1400-04 - 1471) is an English diplomat, soldier, courtier and politician.
He fights on the sides of both the Yorkists and the Lancastrians in the Wars of the Roses.
Although Wenlock is often remembered for his military exploits (he fought in six of the major battles of the Wars of the Roses, as well as the sieges of the Tower of London and Dunstanburgh Castle), most of his public service is in the diplomatic field.