| Honorific-Prefix: | The Right Honourable |
| The Lord Cushendun | |
| Honorific-Suffix: | PC |
| Office1: | Chancellor of the Duchy of Lancaster |
| Primeminister1: | Stanley Baldwin |
| Term Start1: | 19 October 1927 |
| Term End1: | 4 June 1929 |
| Predecessor1: | The Viscount Cecil of Chelwood |
| Successor1: | Sir Oswald Mosley |
| Office2: | Financial Secretary to the Treasury |
| Term Start2: | 5 November 1925 |
| Term End2: | 1 November 1927 |
| Predecessor2: | Walter Guinness |
| Office4: | Member of Parliament for Canterbury |
| Term Start4: | 14 December 1918 |
| Term End4: | 4 November 1927 |
| Predecessor4: | George Knox Anderson |
| Successor4: | William Wayland |
| Office5: | Member of Parliament for St Augustine's |
| Term Start5: | 7 July 1911 |
| Term End5: | 25 November 1918 |
| Predecessor5: | Aretas Akers-Douglas |
| Successor5: | Constituency abolished |
| Office3: | Member of the House of Lords Lord Temporal |
| Term Start3: | November 1927 |
| Term End3: | 12 October 1934 Hereditary peerage |
| Party: | Conservative |
| Birth Place: | Torquay |
| Birth Date: | 1861 4, df=yes |
| Death Place: | Cushendun, County Antrim, Northern Ireland |
Ronald John McNeill, 1st Baron Cushendun, PC (30 April 1861 – 12 October 1934), was a British Conservative politician and writer.
McNeill was born in Torquay.[1] He was the son of Edmund McNeill, DL, JP and Sheriff of County Antrim, and his wife Mary (née Miller). He was educated at Harrow and Christ Church, Oxford, graduating in 1886. McNeill was called to the bar in 1888 and started work as editor of The St James's Gazette (1900–04), as well as assistant editor of the Encyclopædia Britannica (1906–10).[2]
Having unsuccessfully contested the seats of West Aberdeenshire (1906), Aberdeen South (1907 and Jan. 1910) and Kirkcudbrightshire (Dec. 1910), McNeill was elected as Unionist Member of Parliament for the St Augustine's division of Kent in 1911. Seven years later he became representative for Canterbury and in 1922 was appointed Under-Secretary of State for Foreign Affairs, a post he held, with a short interval for the first Labour Government of 1924, until 1925.
After serving as Financial Secretary to the Treasury for two years, McNeill was made Chancellor of the Duchy of Lancaster with a seat in the cabinet in 1927. The same year he was also sworn of the Privy Council and, in November 1927, raised to the peerage as Baron Cushendun of Cushendun in the County of Antrim. Acting Foreign Secretary in 1928 and twice chief British representative to the League of Nations, Lord Cushendun signed the Kellogg-Briand Pact in August that year. He retired from office in 1929.
From 1910, McNeill resided, when not in London, at Glenmona House in Cushendun, the coastal village in the Glens of Antrim in County Antrim from which he later took his title. He was burnt out of the house in 1922, having a replacement built that was designed by Clough Williams-Ellis.[3] The village also contains buildings designed by Williams-Ellis, built in memory of Lord Cushendun's Cornish wife, Maud, who died in 1925.
In 1884, the future Lord Cushendun married Elizabeth Maud Bolitho (sister of William Bolitho), a Cornishwoman and Christian Scientist.[4] They had three daughters: Esther Rose, Loveday Violet, and Mary Morvenna Bolitho (who married Major Philip Le Grand Gribble, military correspondent and memoirist). After Elizabeth's death in 1925 he married Catherine Sydney Louisa Margesson in 1930. She survived him, dying in 1939.[5] Lord Cushendun died in Cushendun in October 1934, aged 73, when the barony became extinct.