Lieutenant-General Sir Henry Le Guay Geary KCB (29 April 1837 – 31 July 1918) was a British Army officer.

[1] Geary was the son of Frederick August Greary and Anne Soulsby.

He served in the Crimean War and was awarded the Order of the Medjidie (5th class) for distinguished conduct in the field.

He subsequently served in the Indian Rebellion of 1857 and the British Expedition to Abyssinia.

He held appointments in Ireland, at the Army Headquarters and the War Office before serving as President of Ordnance Committee from 1899 to 1902.