Lieutenant General Samuel Holt Lomax, was a British Army officer who commanded the 1st Division during the early battles of the First World War. He was fatally wounded in action in October 1914 at the First Battle of Ypres, being one of the most senior British officers to die on active service during the war.

The 1st Division was an infantry division of the British Army that was formed and disestablished numerous times between 1809 and the present. It was raised by Lieutenant-General Arthur Wellesley for service in the Peninsular War. It was disestablished in 1814 but re-formed the following year for service in the War of the Seventh Coalition and fought at the Battle of Waterloo. It remained active in France until 1818, when it was disbanded. It was subsequently raised for service in the Crimean War, the Anglo-Zulu War, and the Second Boer War. In 1902, it was re-raised in the UK. This latter event saw the division raised as a permanent formation, rather than being formed on an ad hoc basis for any particular crisis.