Baron Hamilton of Dalzell, in the County of Lanark,^[1] is a title in the Peerage of the United Kingdom. It was created in 1886 (138 years ago) (1886) for the Liberal politician John Hamilton. He had previously represented Falkirk and Lanarkshire South in the House of Commons and after his elevation to the peerage served under William Ewart Gladstone as a Government Whip from 1892 to 1894. His eldest son, the second Baron, was a Government Whip from 1905 to 1911 in the Liberal administrations of Henry Campbell-Bannerman and H. H. Asquith and also served as Lord Lieutenant of Lanarkshire.^[2] His nephew, the third Baron, was Lord Lieutenant of Surrey. As of 2010^[update] the title is held by the latter's grandson, the fifth Baron, who succeeded his father in 2006.

The territorial designation is pronounced /diːɛl/ as in the usual pronunciation of the Scottish surname. The ancient family seat, Dalzell House in Motherwell, Lanarkshire, was sold in 1952. The third Baron lived in Bramley, Surrey.

In 1980, James Hamilton, later to become the 4th Baron, inherited the Apley Hall estate of some 8,500 acres in Shropshire and the Betchworth estate in Surrey on the death of his cousin Major General E. H. Goulburn. The village hall at Betchworth is named the Hamilton Rooms after the family. As of 2004 the estate is divided into the land portion still owned by the current baron.^[3]

The Conservative politician Archie Hamilton, Baron Hamilton of Epsom (born 1941), is the second son of the third Baron Hamilton of Dalzell.

• John Glencairn Carter Hamilton, 1st Baron Hamilton of Dalzell (1829–1900)
• Gavin George Hamilton, 2nd Baron Hamilton of Dalzell (1872–1952)
• John d'Henin Hamilton, 3rd Baron Hamilton of Dalzell (1911–1990)
• James Leslie Hamilton, 4th Baron Hamilton of Dalzell (1938–2006)
• Gavin Goulburn Hamilton, 5th Baron Hamilton of Dalzell (born 1968)

The heir apparent is the present holder's son, the Hon. Francis Alexander James Goulburn Hamilton (born 2009).

• Kidd, Charles (1903). Debrett's peerage, baronetage, knightage, and companionage. 160A, Fleet Street, London, UK: Dean & Son. p. 442.((cite book)): CS1 maint: location (link)
• Hesilrige, Arthur G. M. (1921). Debrett's Peerage and Titles of courtesy. 160A, Fleet Street, London, UK: Dean & Son. p. 438.((cite book)): CS1 maint: location (link)
• Kidd, Charles; Williamson, David, eds. (1990). Debrett's Peerage and Baronetage (1990 ed.). New York: St Martin's Press.
• Leigh Rayment's Peerage Pages ^{[self-published source] [better source needed]}

v t e Extant hereditary baronies in the Peerage of the United Kingdom
King George III	Ellenborough Manners
The Prince Regent	Churchill Harris
King George IV	Ravensworth Delamere Forester Rayleigh Gifford Feversham Seaford Plunket Heytesbury Skelmersdale Wynford
King William IV	Kilmarnock Poltimore Mostyn de Saumarez Denman Abinger Ashburton Hatherton Stratheden Lovat^*
Queen Victoria	Rossmore^• Carew^• de Mauley Wrottesley Sudeley Methuen Stanley of Alderley^• Leigh Monteagle of Brandon Campbell Vivian Congleton Eddisbury^• Londesborough de Freyne Raglan Belper Chesham Churston Leconfield Lyveden Brougham and Vaux Westbury Annaly Northbrook Hartismere^• Hylton Penrhyn O'Neill Napier of Magdala Dunning^* Acton Wolverton O'Hagan Sandhurst Ettrick^* Aberdare Moncreiff Coleridge Cottesloe Hampton Harlech Tollemache Gerard Sackville Norton Trevor Ampthill Derwent Hothfield Tennyson Strathspey Monk Bretton Northbourne Northington^• Rothschild Revelstoke Monkswell Ashbourne St Oswald Montagu of Beaulieu Elphinstone^* Hindlip Grimthorpe Kensington^• Hamilton of Dalzell St Levan Basing de Ramsey Addington Savile Ashcombe Crawshaw Amherst of Hackney Newton Dunleath Swansea Aldenham HolmPatrick Burton Glanusk Cranworth Avebury Killanin Strathcona and Mount Royal
King Edward VII	Kinross Shuttleworth Grenfell Redesdale Burnham Biddulph Ritchie of Dundee Hemphill Joicey Nunburnholme Swaythling Blyth Marchamley Gorell Fisher Kilbracken
King George V	Hardinge of Penshurst de Villiers Glenconner Aberconway Merthyr Rowallan Ashton of Hyde Ravensdale Hollenden Parmoor Cunliffe Wrenbury Faringdon Shaughnessy Rathcreedan Somerleyton Carnock Beaverbrook Gainford Forteviot Colwyn Gisborough Morris Cawley Terrington Glenarthur Phillimore Inverforth Sinha Cochrane of Cults Clwyd Russell of Liverpool Swinfen Meston Cullen of Ashbourne Trevethin Glendyne Manton Forres Vestey Borwick Maclay Bethell Hunsdon Darling Banbury of Southam Merrivale Bradbury Mereworth^• Greenway Hayter Cornwallis Daresbury Wraxall Remnant Moynihan Craigmyle Dulverton Luke Alvingham Baden-Powell Ponsonby of Shulbrede Dickinson Noel-Buxton Howard of Penrith Rochester Selsdon Moyne Davies Rankeillour Brocket Milne Rennell Mottistone Iliffe Palmer Rockley Elton Wakehurst Hesketh Tweedsmuir Wigram Riverdale May Kennet Strathcarron
King Edward VIII	Catto
King George VI	Windlesham Mancroft McGowan Denham Rea Cadman Kenilworth Pender Roborough Brassey of Apethorpe Stamp Bicester Milford Hankey Harmsworth Rotherwick Glentoran Tryon Croft Teviot Nathan Reith Kindersley Ironside Latham Wedgwood Geddes Bruntisfield Brabazon of Tara Keyes Hemingford Moran Killearn Dowding Gretton Westwood Hazlerigg Hacking Chetwode Sandford Altrincham Broadbridge Mountevans Lindsay of Birker Piercy Chorley Calverley Tedder Colgrain Darwen Lucas of Chilworth Shepherd Newall Oaksey Rugby Layton Simon of Wythenshawe Kershaw Trefgarne Crook Amwell Milverton Clydesmuir Burden Haden-Guest Silkin§ Hives Ogmore Morris of Kenwood Macpherson of Drumochter Kenswood Freyberg Milner of Leeds Kirkwood Wise
Queen Elizabeth II	Jeffreys Rathcavan Baillieu Grantchester Coleraine Harvey of Tasburgh Gridley Strathalmond Strathclyde Clitheroe McNair Colyton Astor of Hever Sinclair of Cleeve Bridges Norrie Birkett Harding of Petherton Poole Rootes Netherthorpe Crathorne Spens MacAndrew Nelson of Stafford Howick of Glendale Sanderson of Ayot Cobbold Robertson of Oakridge Marks of Broughton Fairhaven Leighton of St Mellons Brain Aldington Inchyra Silsoe Egremont Thomson of Fleet Martonmere Sherfield Inglewood Glendevon Grimston of Westbury Renwick St Helens Margadale
§: Disclaimed.  Italics: This title is held by a peer who holds another of higher precedence. ^* Also a Lord in the Peerage of Scotland  ^• Also a Baron in the Peerage of Ireland