General Sir Edmund Haythorne KCB (28 May 1818 – 18 October 1888) was a British Army officer who served as Adjutant-General in India.

Educated at the Royal Military College, Sandhurst, Haythorne was commissioned into the 98th Regiment of Foot on 12 May 1837.

[2] He took part in the Battle of Chinkiang in July 1842 during the First Opium War.

[2] He also served as aide-de-camp to General Sir Colin Campbell at the Battle of Chillianwala in January 1849 and the Battle of Gujrat in February 1849 during the Second Anglo-Sikh War.

[2] He was brigade major at the Battle of Balaclava in October 1854 and then commanded the 1st Battalion of the 1st Royals during the Siege of Sevastopol in Spring 1855 during the Crimean War.