This is a list of people who have served as Custos Rotulorum of Merionethshire.
John "Wynn" ap Maredudd 1543 – bef. 1558Lewis ap Owen 1553–1555 Ellis Price bef. 1558 – bef. 1562Owen ap John ap Howell Vaughan bef. 1562 – bef. 1564Ellis Price bef. 1564 – aft.1577Robert Dudley, 1st Earl of Leicester bef. 1579 –1588Sir Robert Salusbury bef. 1594–1599Sir Thomas Myddelton bef. 1599 –1617William Salusbury 1617 – aft. 1626Hugh Nanney 1629–1646InterregnumSir Thomas Myddelton, 1st Baronet 1660–1663Sir John Owen 1663–1666William Owen 1666–1678Sir John Wynn, 5th Baronet 1678–1688William Herbert, 1st Marquess of Powis 1688–1689Sir William Williams, 1st Baronet 1689–1690Sir John Wynn, 5th Baronet 1690–1711Edward Vaughan 1711– (died 1718)Lewis Owen 1722–1731William Vaughan 1731–1769Wilmot Vaughan, 1st Earl of Lisburne 1769–1775For later custodes rotulorum, see Lord Lieutenant of Merionethshire.
