Baron Strathspey, of Strathspey in the Counties of Inverness and Moray, is a title that has been created twice, both times in the Peerage of the United Kingdom. On both occasions, the barony was created for an Earl of Seafield.

It was created for the first time on 14 August 1858^[1] for John Ogilvy-Grant, 7th Earl of Seafield (see the Earl of Seafield for earlier history of this title). This creation became extinct on the death of his son, the eighth Earl and second Baron, in 1884.

The barony was revived only a few months after it first became extinct^[2] in favour of the late Earl's uncle, James Ogilvy-Grant, 9th Earl of Seafield (who had also succeeded him in the baronetcy of Colquhoun; see Colquhoun baronets for earlier history of this title). The barony and baronetcy remained subsidiary titles of the earldom until the death of the ninth Earl's grandson, the eleventh Earl, in 1915. The earldom, which could be passed on to female heirs, was inherited by the Earl's daughter and only child, the twelfth Countess (see the Earl of Seafield for later history of the earldom).

The baronetcy and barony of Strathspey, which could only be inherited by males, were passed on to the Earl's brother, the fourth Baron. His son, the fifth Baron, was confirmed in the surname of Grant of Grant by decree of the Lord Lyon in 1950. As of 2023^[update] the titles are held by the latter's younger son, the seventh Baron, who succeeded in 2023. His is the 34th Chief of Clan Grant.

• John Charles Ogilvy-Grant, 7th Earl of Seafield, 1st Baron Strathspey (1815–1881)
• Ian Charles Ogilvy-Grant, 8th Earl of Seafield, 2nd Baron Strathspey (1851–1884)

• James Ogilvy-Grant, 9th Earl of Seafield, 1st Baron Strathspey (1817–1888)
• Francis William Ogilvy-Grant, 10th Earl of Seafield, 2nd Baron Strathspey (1847–1888)
• James Ogilvy-Grant, 11th Earl of Seafield, 3rd Baron Strathspey (1876–1915)
• Trevor Ogilvy-Grant, 4th Baron Strathspey (1879–1948)
• Donald Patrick Trevor Grant of Grant, 5th Baron Strathspey (1912–1992)
• James Patrick Trevor Grant of Grant, 6th Baron Strathspey (1943–2023)^[3]
• Michael Patrick Grant, 7th Baron Strathspey (born 1953)

There is no heir to the barony.^[4]

• Clan Grant
• Colquhoun baronets
• Earl of Seafield

• Kidd, Charles, ed. (1903). Debrett's peerage, baronetage, knightage, and companionage. London: Dean and son. p. 780.
• http://www.leighrayment.com/lords.htm^{[permanent dead link]}
• http://www.leighrayment.com.commons.htm^{[permanent dead link]}

• Hansard 1803–2005: contributions in Parliament by Donald Patrick Trevor Grant of Grant, 5th Baron Strathspey
• Hansard 1803–2005: contributions in Parliament by James Patrick Trevor Grant of Grant, 6th Baron Strathspey

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