Major-General Sir Arthur Reginald Hoskins, KCB, CMG, DSO (30 May 1871 – 7 February 1942) was a senior British Army officer during the First World War.

In late November 1899 he took part in the operations leading to the defeat of the Khalifa, and for his services in the Sudan he received a notice for consideration on future promotion.

[6] In February 1900 he relinquished his appointment with the Egyptian Army, and joined the 2nd Battalion of his regiment which had just embarked for service in the Second Boer War in South Africa.

[14] He soon returned to Africa however, when he fought in the Somaliland campaign in 1903, serving as a staff officer on the lines of communication,[15] and was again mentioned in despatches.

In September 1914 Hoskins was recalled from East Africa and was appointed assistant adjutant and quartermaster general of the 8th Division,[18] which soon left to fight on the Western Front.

On 12 November he became GSO1 (essentially chief of staff) to Major General Sir Thompson Capper, who had recently been appointed to command the 7th Division.

Hoskins reorganised the transport and medical services and improved the lines of communication, intending to renew the offensive when the unusually heavy rains ended.