Sir John Wynn, 5th Baronet (1628 – 11 January 1719) was a Welsh landowner and Tory politician who sat in the English and British House of Commons between 1679 and 1713. He was among the largest landowners in Wales.
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Early life
Wynn was the only son of Henry Wynn of Rhiwgoch, Merioneth, and was educated at the Inner Temple, 1646. He inherited the Watstay Estate through his marriage to Jane Evans (daughter of Eyton Evans of Watstay), which he renamed the Wynnstay Estate. He also, allegedly, won the manor of Stanwardine in Shropshire from Thomas Corbett in a snail race.
He succeeded his cousin Sir Richard Wynn, 4th Baronet as a baronet in 1674 but did not inherit the Gwydyr Estate, which passed to his predecessor's daughter Mary (later wife of Robert Bertie, 1st Duke of Ancaster and Kesteven).
Career
Wynn served as High Sheriff of Denbighshire for 1671–3, as High Sheriff of Caernarvonshire for 1674-75 and as High Sheriff of Merionethshire for 1675–1676. He was Custos Rotulorum of Merionethshire for 1678–1688, 1690–96 and 1700–1711.




