Newton Fellowes, 4th Earl of Portsmouth (26 June 1772 – 9 January 1854) was an English politician, styled Hon.
[2] He was educated at Trinity College, Cambridge, becoming MA in 1792.
He briefly succeeded to the peerage as Earl of Portsmouth on the death of his brother in 1853.
[2] An obituarist described Fellowes as "always a zealous and energetic supporter of Liberal politics, but at the same time his manners were cordial and conciliatory to all parties".
[2] He was instrumental in building the road between Exeter and Barnstaple, and later promoted the railway in North Devon.