James Macnaghten McGarel-Hogg, 1st Baron Magheramorne, KCB (3 May 1823 – 27 June 1890), was a British politician, Member of Parliament, and local government leader.

His father was the Administrator-General of Bengal and Chairman of the British East India Company.

He was also a member of St. George, Hanover Square Vestry, a form of local government similar to a parish council.

From 1867 he was chosen by the Vestry to represent them on the Metropolitan Board of Works which co-ordinated cross-London building schemes.

However, the Board's desire for a new bridge by Little Tower Hill could not be fulfilled because its revenue source was not secure.

The Board also acquired the power to clear slums in 1875, but found the process cumbersome and expensive, resulting in small progress (although it accelerated when further Acts of Parliament removed some restrictions).

However, McGarel-Hogg's administration was hit by scandal in 1887 over the sale of surplus land, blighting somewhat the award of a peerage in the celebrations of Queen Victoria's Golden Jubilee.