| Honorific-Prefix: | The Right Honourable |
| The Lord Colgrain | |
| Office1: | Member of the House of Lords |
| Status1: | Lord Temporal |
| Term Label1: | as an elected hereditary peer |
| Term Start1: | 27 March 2017 |
| 1Blankname1: | By-election |
| Predecessor1: | The 3rd Baron Lyell |
| Successor1: | in office |
| Birth Name: | Alastair Colin Leckie Campbell |
| Birth Date: | 16 September 1951 |
| Birth Place: | Sevenoaks, Kent, England |
| Party: | Conservative |
| Education: | Eton College |
| Alma Mater: | Trinity College, Cambridge |
| Spouse: | Annabel Warrender (m. 1979) |
Alastair Colin Leckie Campbell, 4th Baron Colgrain, DL (born 16 September 1951), is a British hereditary peer and Conservative member of the House of Lords.
After attending Eton College, he went up to read English at Trinity College, Cambridge, graduating as MA.[1] Starting his career in the City with J Henry Schroder Wagg, he joined the Welbeck Group as a financial services headhunter in 1985. Taken over by the Whitney Group 1991, he was promoted Managing Director, CEO becoming its Vice-President (Europe) in 1999.[2] Since 2008, he has been a partner running the Campbell family estate in the Weald of Kent[3] and served as High Sheriff of Kent for 2013/14, before being appointed a Deputy Lieutenant for Kent in 2017.[4]
Lord Colgrain was elected to sit in the Upper House at a whole House by-election in March 2017,[5] in place of Lord Lyell who died on 11 January 2017.[6]
Descended from a cadet branch of the Campbells, Earls of Breadalbane, his great-grandfather, the Scottish banker Colin Campbell, was created Baron Colgrain in 1946. He succeeded to the family title upon his father's death in 2008.
In 1979 he married, Annabel Rose, younger daughter of the Hon. Robin Warrender. Lord and Lady Colgrain have two sons:
His wife, the Lady Colgrain, serves as Lord Lieutenant of Kent since 2020.[8]
| Escutcheon: | Gyronny of eight Or and Sable on a chief Azure a Bezant between two Crescents of the First. |
| Crest: | A Boar’s Head erect and erased Azure issuing from a Wreath of Myrtle leaved and flowered Proper. |
| Supporters: | On the dexter side a Horse Argent and on the sinister side a Boar Azure. |
| Motto: | Fac Et Spera[9] |