Rev. John Lloyd DCL (1533-1607) was a Welsh lawyer, Judge of the High Court of Admiralty in London, board member of All Souls College, and a cofounder, along with Queen Elizabeth Tudor, of the first Protestant College at the University of Oxford.
 John Lloyd was born in 1533, the third son of David Lloyd of Cevn Amwlch, in Lleyn, Carnarvonshire. He resided at Hartshorne, Derbyshire, and at his lodge in London. He married Elizabeth Pigott of Doddershall, daughter of Thomas Pigott (Bedfordshire MP), the High Sheriff of Buckinghamshire. His brother-in-law was Thomas Pigott, Justice of the Peace, while his nephew, Thomas Pigott (Aylesbury MP), was son-in-law of Sir John Allot, the Lord Mayor of London.
 Lloyd obtained his Bachelor of Arts degree from the University of Oxford in 1542.  He was a Fellow of All Souls College, member of the governing body of Oxford University. He received the degrees of Bachelor of Civil Law in 1554 and Doctor of Civil Law in 1565. He became an advocate of the Canterbury Court of the Arches in 1566, and later, Judge of the High Court of Admiralty in London.  Lloyd worked under Lord Admirals, Edward Clinton, 1st Earl of Lincoln, husband of Elizabeth FitzGerald, and Charles Howard, 1st Earl of Nottingham, cousin of Elizabeth I and Anne Boleyn.
 As a Judge of the High Court of Admiralty, Lloyd had to deal with maritime issues, such as acts of piracy, and captures of warfare vessels and merchant ships by ennemies or competitors. He also had to settle the rights between merchants, seamen, and ship-owners. The Admiralty Court was considered a merchant's court, designed to protect the rights of traders, and dealt with the problems they encountered with pirates. Lloyd worked during an important period of change, the Tudor period, which marked the beginning of the British Empire.
 With improvements in ship technology, capital financing, and with the discovery of new colonies around the world, Britain developed a policy of commercial  and overseas expansion. The reforms of Henry VIII, and later of Elizabeth Tudor, allowed the Admiralty Court to flourish as they were able to deal with more matters related to law and finance, such as commercial disputes, freight and charterparty, bills of exchange, lading, insurance, and hypothecation of ships. This opened the way for Lloyd, who was an ambitious lawyer, as they needed more Judges to deal with the increasing complexity of maritime trade.
 In April 1559, Lloyd was appointed Dean of St Asaph in Wales but was removed from this position in November the same year. In 1571, he was named in a charter granted by Queen Elizabeth I as one of the eight founding fellows of Jesus College, Oxford. That College was the first Protestant college at the University of Oxford and was the only college created there by Elizabeth Tudor. Members of that charter, along with John Lloyd, were the Secretary of State, William Cecil of Burghley House; the Lord Chancellor of England, Sir Christopher Hatton of Holdenby Palace; the Lord Keeper of the Great Seal, Nicholas Bacon of Old Gorhambury House, and a few others.
 There was in total 8 founding fellows, 8 founding commissioners, 8 founding scholars, and a Principal. In 1589, Elizabeth Tudor issued a new Charter, reducing the members from 22 to 13, making all of them Commissioners with no more Fellows or Scholars. John Lloyd was one the thirteen founding Commissioners appointed by the Queen and was promoted from Fellow to Commissionner. Before Jesus College was founded, Lloyd had also been the Principal of White Hall at the University of Oxford. He died in February 1607 and was buried in the Minster (church) at Chester Cathedral, in England.
 John Lloyd was a member of the Griffith family of Cevn Amwlch, who rose to power after challenging the supremacy of the Wynn family of Gwydir. 
 Members of his family included :
 John Lloyd children included :