This is a list of people who have served as Custos Rotulorum of Carmarthenshire.

Richard Devereux 1543 – bef. 1558 Sir Thomas Jones bef. 1558 – bef. 1559 Sir Henry Jones bef. 1562–1586 Sir Thomas Jones 1586 – bef. 1594 Edward Dunlee bef. 1594–1595 Sir Thomas Jones 1595–1604 Sir Henry Jones 1605 – bef. 1637 Sir Henry Jones, 1st Baronet 1637–1644 Richard Vaughan, 2nd Earl of Carbery 1644–1646 Interregnum Sir John Lloyd, 1st Baronet Mar–July 1660 Richard Vaughan, 2nd Earl of Carbery 1660–1686 John Vaughan, 3rd Earl of Carbery 1686–1713 Charles Paulet, 3rd Duke of Bolton 1714–1735 Sir Nicholas Williams, 1st Baronet 1735–1745 Thomas Williams of Edwinsford (brother of Nicolas Williams, 1st Baronet) 1746–1762 George Rice 1762–1779 For later custodes rotulorum, see Lord Lieutenant of Carmarthenshire.

References

Institute of Historical Research - Custodes Rotulorum 1544-1646 Institute of Historical Research - Custodes Rotulorum 1660-1828