James Naper Dutton, 1st Baron Sherborne (22 October 1744 – 22 May 1820), was a British peer.
Sherborne was the son of James Lenox Dutton (originally James Lenox Naper), of Sherborne, Gloucestershire, by his second wife Jane, daughter of Christopher Bond. He was educated at Eton College (1755–62) and Christ Church, Oxford (1763).
He was appointed High Sheriff of Gloucestershire for 1779–80 and was elected Member of Parliament for Gloucestershire in 1780, a seat he held until 1784. The latter year he was raised to the peerage as Lord Sherborne, Baron of Sherborne, in the County of Gloucester.
Lord Sherborne married Elizabeth, daughter of Wenman Coke, in 1774. They had four children:
Lord Sherborne died in May 1820, aged 75, and was succeeded in the barony by his son, John. Lady Sherborne died in December 1824.
His obituary, from the July - December 1820 New Monthly Magazine and Universal Register states: