Dudley Stuart McGarel Hogg, 3rd Baron Magheramorne (3 December 1863 – 14 March 1946) was an Anglo-Irish peer.

He was the second son of James McGarel-Hogg, 1st Baron Magheramorne and was educated at Radley College. He inherited the peerage from his brother in 1903. Like his father, Magheramorne was a Conservative and Unionist.^[1]

In later life he retired to Bournemouth and was living in a nursing home in Banstead, Surrey at the time of his death. He is buried in Brompton Cemetery. The peerage was inherited by his brother.