Walter Hore-Ruthven, 10th Lord Ruthven of Freeland

Major General Walter Patrick Hore-Ruthven, 10th Lord Ruthven of Freeland, 2nd Baron Ruthven of Gowrie, CB, CMG, DSO (6 June 1870 – 16 April 1956), known as Master of Ruthven from 1870 to 1921, was a senior British Army officer. He served as Major-General commanding the Brigade of Guards and General Officer Commanding London District from 1924 to 1928, and was then Lieutenant Governor of Guernsey until 1934.

Hore-Ruthven was commissioned into the Scots Guards in 1887. He served in the Second Boer War, and on 1 January 1902 was appointed regimental Adjutant of the Scots Guards. He later served in the First World War. He succeeded as 2nd Baron Ruthven of Gowrie and as 10th Lord Ruthven of Freeland in 1921.

After the war he became Commander of the Bangalore Brigade in India and in 1924 he was appointed Major-General commanding the Brigade of Guards and General Officer Commanding London District. In 1929 he was made Lieutenant Governor of Guernsey. He retired in 1935.

Educated at Eton College, Lord Ruthven was the son of Walter James Hore-Ruthven, 9th Lord Ruthven of Freeland and Lady Caroline Annesley Gore, a daughter of Philip Gore, 4th Earl of Arran. He married Jean Leslie Lampson, who was a granddaughter of Curtis Lampson, in 1895 and had issue:

• Hon. Bridget Helen Hore-Ruthven (1896–1982); married George Howard, 11th Earl of Carlisle (divorced), had issue, later remarried Walter Monckton, 1st Viscount Monckton of Brenchley
• Hon. Jean Elizabeth St. Loe Hore-Ruthven (1898–1960); married, no issue
• Hon. Alison Mary Hore-Ruthven (1902–1974); married Commander Sir John Leighton Barran, 3rd Baronet, had issue
• Hon. Margaret Leslie Hore-Ruthven (1902–1970); married Peter Llewelyn Davies, had issue

After Jean Lampson's death in 1952, Lord Ruthven remarried Judith Gordon Bell.

Lord Ruthven's surname and title originated from his Irish great-grandfather Walter Hore's marriage to Scottish noblewoman Mary Ruthven, Lady Ruthven of Freeland. Walter legally changed his surname to Hore-Ruthven.

• The Master of Ruthven (1870–1921)
• Major General the Lord Ruthven of Freeland CB CMG DSO (1921–1956)

As his more senior title was in the Peerage of Scotland and may be inherited by female descendants, it is currently held by the Carlisle branch of the Howard family through Lady Ruthven's first marriage. The junior title Baron Ruthven of Gowrie may only pass through male descendants and is held by his great-nephew Grey Ruthven, 2nd Earl of Gowrie.