Lieutenant-Colonel Amelius Richard Mark Lockwood, 1st Baron Lambourne, GCVO, PC, JP, DL (17 August 1847 – 26 December 1928) was a British soldier and politician.

He was a descendant of Richard Lockwood, Member of Parliament for Hindon, the City of London and Worcester in the early 18th century, whose father Richard Lockwood had acquired the Lambourne estate in Essex through his marriage to Susanna Cutts.

[2] Lockwood joined the Coldstream Guards in 1866 but retired from the Army in 1883 with the rank of lieutenant-colonel.

[8] Lord Lambourne married Isabella, daughter of Sir John Milbanke, 8th Baronet, in 1876.

Lord Lambourne survived her by five years and died in December 1928, aged 81, when the barony became extinct.