The Clerks of the Signet were English officials who played an intermediate role in the passage of letters patent through the seals. For most of the history of the position, four clerks were in office simultaneously.

Letters patent prepared by the Clerk of the Patents were engrossed at the Patent Office and then sent by the Secretary of State to receive the royal sign-manual. The duty of the Clerks of the Signet was to compare the signed bills with a transcript prepared by the Clerk of the Patents, and then to rewrite the transcript as a bill of privy signet, which was returned to the Secretary of State to be signed with that instrument.^[1]

By the end of the seventeenth centuries, many of the Clerks of the Signet performed their work through deputies, with the office itself becoming a sinecure. The Treasury was given the authority to reduce the number of clerkships in 1832, abolishing one in 1833 and another in 1846. The two remaining posts were done away with in 1851.^[2]

• John Depeden c.1420 ^[3]
• Thomas Andrew c.1422
• William Crosby 1437–1459 ^[3]
• George Ashby c.1440 ^[3]
• Robert Osbern c.1440 ^[3]
• Nicholas Harpesfield c.1445
• Edmund Blake c.1450 ^[3]
• John Bowden 1452–1459 ^[3]
• Richard Bell 1463–1474 ^[3]
• William Robyns c.1470–c.1482^[4]
• Oliver King c.1473 ^[4]
• John Wylde c.1475–c.1488 ^[4]
• Edmund Gregory c.1479–c.1483 ^[4]

The history of these earlier Signets in the medieval period is not recorded by the table below.

Appointments were not made under the Commonwealth of England until 1655 as the republic did not recognise hereditary house of Lords, so peerages were not created.

• 1655–1705:John Nicholas
• 16 June 1655: James Nutley
• 20 March 1656: Samuel Morland

Appointments resumed upon the Restoration in 1660, including two of the former officeholders, Warwick and Windebanke.