James Dalrymple Horn Elphinstone

Sir James Dalrymple-Horn-Elphinstone, 2nd Baronet (20 November 1805 – 26 December 1886) was a British Conservative Party politician who sat in the House of Commons in two periods between 1857 and 1880.

Dalrymple-Horn-Elphinstone was the son of Sir Robert Dalrymple-Home-Elphinstone, 1st Baronet and his wife Graeme Hepburn daughter of Colonel Hepburn, of Keith. He was educated at the Musselburgh Grammar School. He served as a naval officer for the Honourable East India Company for many years and retired as Commander in 1834. In 1848, he inherited the baronetcy on the death of his father. He was a J.P. and Deputy Lieutenant for Aberdeenshire.

Dalrymple-Horn-Elphinstone stood for parliament unsuccessfully at Greenock in 1852. He was elected Member of Parliament for Portsmouth in 1857 and held the seat until 1865 when he was defeated. He stood unsuccessfully at Aberdeenshire in 1866. At the 1868 general election he was re-elected for Portsmouth and held the seat until 1880.

Dalrymple-Horn-Elphinstone died at the age of 81.

Dalrymple-Horn-Elphinstone married Mary Heron Maxwell, daughter of Lieutenant-general Sir John Heron-Maxwell, 4th Baronet in April 1836.