Field Marshal Stapleton Cotton, 1st Viscount Combermere GCB, GCH, KSI, PC (14 November 1773 – 21 February 1865), was a British military leader, diplomat and politician. He was a colonel of the 1st Life Guards, Commander-in-Chief, Ireland and served with distinction under Arthur Wellesley, 1st Duke of Wellington in the Peninsular War.