Lord Lieutenant of Hertfordshire
This is an incomplete list of people who have served as Lord Lieutenant of Hertfordshire. From 1660 the office holder was also Custos Rotulorum of Hertfordshire.
- William Parr, 1st Marquess of Northampton 1553 –
- Sir Ralph Sadleir 1570–?
- Henry Carey, 1st Baron Hunsdon 1583–1585
- Robert Dudley, 1st Earl of Leicester 3 July 1585 – 4 September 1588
- William Cecil, 1st Baron Burghley 31 December 1588 – 4 August 1598
- vacant
- Robert Cecil, 1st Earl of Salisbury 5 August 1605 – 24 May 1612
- William Cecil, 2nd Earl of Salisbury 10 July 1612 – 1642 jointly with
- Charles Cecil, Viscount Cranborne 31 March 1640 – 1642
- Interregnum
- Arthur Capell, 1st Earl of Essex 26 July 1660 – 1681
- John Egerton, 2nd Earl of Bridgewater 10 February 1681 – 26 October 1686
- Laurence Hyde, 1st Earl of Rochester 18 November 1686 – 1688
- Charles Talbot, 1st Duke of Shrewsbury 4 April 1689 – 1691
- Algernon Capell, 2nd Earl of Essex 3 February 1692 – 10 January 1710
- William Cowper, 1st Earl Cowper 26 August 1710 – 1712
- James Cecil, 5th Earl of Salisbury 26 June 1712 – 1714
- William Cowper, 1st Earl Cowper 5 March 1715 – 1722
- William Capell, 3rd Earl of Essex 11 October 1722 – 8 January 1743
- vacant
- William Clavering-Cowper, 2nd Earl Cowper 8 March 1744 – 18 September 1764
- William Capell, 4th Earl of Essex 12 November 1764 – 1771
- James Cecil, 1st Marquess of Salisbury 13 March 1771 – 13 June 1823
- James Grimston, 1st Earl of Verulam 5 July 1823 – 17 November 1845
- James Grimston, 2nd Earl of Verulam 17 January 1846 – 1892
- Edward Villiers, 5th Earl of Clarendon 23 August 1892 – 2 October 1914
- Thomas Brand, 3rd Viscount Hampden 9 February 1915 – 1952
- Sir David Bowes-Lyon 1 July 1952 – 13 September 1961
- Sir George Burns 8 December 1961 – 12 February 1986
- Sir Simon Bowes-Lyon 12 February 1986 – 27 July 2007
- Dione Grimston, Countess of Verulam 27 July 2007 – 31 July 2017
- Robert Voss,, 4 August 2017 – present
