John Wynn

• John "Wynn" ap Maredudd, Head of the cadet lineage of the House of Aberffraw descending from Rhodri ab Owain Gwynedd, 1525–1559
• Sir John Wynn, 1st Baronet, his descendant, Welsh baronet, Member of Parliament for Carnarvonshire, 1586
• Sir John Wynn, 5th Baronet
• Sir John Wynn, 2nd Baronet