Maurice Wynn or Morys Wynn ap John of Gwydir (in or before 1520 – 18 August 1580) was a Welsh courtier and politician.

He was the eldest son of John "Wynn" ap Maredudd from whom he inherited the Gwydir estate

Gwydir Castle

Gwydir Castle is situated in the Conwy valley, North Wales, a mile to the west of the ancient market town of Llanrwst and to the south of the large village of Trefriw...

 in 1559.

In 1551, he married Jane (Sian) Bulkeley. From his first marriage he had three sons, including John Wynn, 1st Baronet and Ellis Wynn and five daughters, including Margaret, who married Thomas Salisbury. His second marriage was to Anne Greville, who died c.1570.

Before the end of January 1573, he married his third wife Katheryn of Berain

Katheryn of Berain

Katheryn of Berain , sometimes called Mam Cymru , was a Welsh noblewoman noted for her four marriages and her extensive network of descendants and relations.-Family:...

 and they had four children:

• Edward Wynn. Married Blanche Vaughan.
• Siân (Jane) Wynn (d.1665). Married Simon Thelwall.
• Morris Wynn (b.1563, d. 1609)
• Robert Wynn

He was the Custos Rotulorum of Caernarvonshire

Custos Rotulorum of Caernarvonshire

This is a list of people who have served as Custos Rotulorum of Caernarvonshire.* Sir Richard Bulkeley c. 1544* John Wyn ap Meredith c. 1558* Maurice Wynn bef. 1562 – aft. 1577* Robert Dudley, 1st Earl of Leicester bef. 1579–1588...

  bef. 1562 – aft. 1577. He was High Sheriff of Caernarvonshire

High Sheriff of Caernarvonshire

This is a list of High Sheriffs of Caernarvonshire.The High Sheriff is the oldest secular office under the Crown. Formerly the High Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been transferred...

 for 1554 and elected the Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 (MP) for Caernarvonshire

Caernarvonshire (UK Parliament constituency)

Caernarvonshire was a constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1885 and from 1918 until 1950. It elected one Member of Parliament by the first past the post...

 in October 1553, April 1554 and 1563.

His heir was his eldest son, John Wynn, 1st Baronet.