Field Marshal Paul Sanford Methuen, 3rd Baron Methuen, GCB, GCMG, GCVO, DL (September 1, 1845 – October 30, 1932) is a British Army officer.

He serves in the Third Anglo-Ashanti War in 1873 and then in the expedition of Sir Charles Warren to Bechuanaland in the mid 1880s.

He takes a prominent role as General Officer Commanding the 1st Division in the Second Boer War.

He suffers a serious defeat at the Battle of Magersfontein, during which he fails to carry out adequate reconnaissance and accordingly his artillery bombards the wrong place leading to the Highland Brigade taking heavy casualties.

He is later captured by the Boers at Tweebosch.

After the war he becomes General Officer Commanding-in-Chief in South Africa in 1908, Governor and Commander-in-Chief of Natal in 1910 and then Governor and Commander-in-Chief of Malta in 1915.