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

• John Baker
• John Knill Aug, 1547
• Thomas Lewis 1564
• Gelli Meyrick 1598
• William Vaughan 1622
• Charles Price 1641–1645
• Richard Jones 1645–?
• Interregnum
• Sir Edward Harley 1660–1685
• Charles Somerset, Marquess of Worcester 1685–1689
• Sir Rowland Gwynne 1689–1702
• Robert Harley, 1st Earl of Oxford and Earl Mortimer 1702–1714
• Thomas Coningsby, 1st Earl Coningsby 1714–1721

For later custodes rotulorum, see Lord Lieutenant of Radnorshire.