Lieutenant Colonel Edward Henry Trotter, DSO (1 December 1872 – 8 July 1916) was a British Army officer who commanded the 18th Battalion, The King's (Liverpool Regiment) during the First World War.

After the outbreak of the Second Boer War in October 1899, a corps of imperial volunteers from London was formed in late December 1899.

[4] Following the end of the war two months later, Trotter and most of the men returned to the United Kingdom on board the SS Lake Michigan in October 1902.

In spite of a weak knee as a result of a hunting accident, Trotter would often take part in his battalion's daily exercises.

Located on the left flank of the French, to the south of where the British Army sustained most of its casualties on the first day, the 30th Division began its advance at 07:30.

When it was ordered to move forward on 8 July, Trotter decided to oversee the movement personally and arrived before the battalion.