Lieutenant-Colonel John Wingfield Malcolm, 1st Baron Malcolm of Poltalloch, CB, VD (16 April 1833 – 6 March 1902) was a British soldier and Conservative politician.
Malcolm was the son of John Malcolm, 14th feudal baron of Poltalloch, Argyll, and Isabella Harriet, daughter of John Wingfield. He was educated at Eton and Christ Church, Oxford.
Malcolm was elected Member of Parliament for Boston in 1860, resigning in 1878 by becoming Steward of the Manor of Northstead. He was later Member of Parliament for Argyllshire from 1885 to 1892. He was appointed a Companion of the Order of the Bath in 1892 and raised to the peerage as Baron Malcolm of Poltalloch, in the County of Argyll, in 1896.
He was a Captain of the Kent Artillery Militia and Honourable Colonel of the 5th Voluntary Battalion, Argyll and Sutherland Highlanders.
In 1870 Malcolm played football for Scotland in the first unofficial England v Scotland International. He was one of two sitting MPs to play for Scotland in this match, the other being William Henry Gladstone.
Lord Malcolm married firstly the Honourable Alice Frederica Irby, daughter of George Irby, 4th Baron Boston, in 1861. After her death in October 1896 he married secondly Marie Jane Lilian, widow of H. Gardner Lister, in 1897. Both marriages were childless.