Baron Killarney was a title in the Peerage of the United Kingdom that has been created twice. The first creation came on 24 May 1892 as a substantive title by Queen Victoria for her grandson Prince George, Duke of York. George was also created Duke of York and Earl of Inverness, on the same day. In 1910 upon his ascension as King George V, his titles merged with the crown. The second creation came on 24 May 1920, as a substantive title by King George V for his son Prince Albert, Duke of York. Albert was also created Duke of York and Earl of Inverness, on the same day. Upon King Edward VIII's abdication in 1936, Albert's titles merged with the crown, upon his coronation as King George VI. It is named after the town and civil parish of Killarney, County Kerry, Ireland (now the Republic of Ireland).

Baron Killarney; first creation (1892)

House of Saxe-Coburg and Gotha 1892–1910 ''also:Duke of York and Earl of Inverness(1892); Prince of Wales, Duke of Cornwall, and Duke of Rothesay (1901)'' Marlborough House son of Edward VII and Alexandra of Denmark 6 July 1893 6 children Sandringham House, Sandringham aged 70

Baron Killarney, second creation (1920)

House of Windsor 1920–1936 also: Duke of York and Earl of Inverness (1920) Sandringham House, Sandringham son of King George V and Queen Mary 26 April 1923 2 children Sandringham House, Sandringham aged 56

Family tree