| Honorific-Prefix: | The Right Honourable |
| The Lord Kinross | |
| Honorific-Suffix: | KC |
| Office1: | Sheriff of Dumfries and Galloway |
| Term Start1: | 1927 |
| Term End1: | 1939 |
| Predecessor1: | Charles Herbert Brown |
| Successor1: | Charles Milne |
| Birth Name: | Patrick Balfour |
| Alma Mater: | Balliol College, Oxford |
| Parents: | John Balfour, 1st Baron Kinross Lilias Oswald Mackenzie |
| Children: | 5 |
Patrick Balfour, 2nd Baron Kinross KC (23 April 1870 – 28 July 1939) was a Scottish peer and advocate.
Balfour was born on 23 April 1870. He was the eldest son and only child of John Balfour, 1st Baron Kinross and the former Lilias Oswald Mackenzie. After the death of his mother, his father married the Hon. Marianne Eliza Moncrieff, a daughter of James Moncreiff, 1st Baron Moncreiff.[1] Among younger his half-siblings were James Moncreiffe Balfour, Lt.-Cdr. John Ramsay Blair Balfour, Harry Robert Chichester Balfour, Norman Frederick William Balfour, and Isobel Nora Gwendoline Balfour.[2]
His maternal grandparents were Donald Mackenzie, styled Lord Mackenzie, a Lord of Session, and the former Janet Alice Mitchell.[3] His paternal grandparents were the Rev. Peter Balfour, minister of Clackmannan, the former Jane Ramsay Blair.[4]
He was educated at Harrow School before attending Balliol College, Oxford, where he graduated in 1894.
He became a practising Advocate in 1897 and was later appointed King's counsel and held the office of Advocate-Depute between 1927 and 1937. He was director of the Scottish Widows' Fund and Life Assurance Society and the Bank of Scotland.
Upon his father's death on 22 January 1905, he succeeded to the barony of Kinross. Lord Kinross was admitted to Brigadier of the Royal Company of Archers and served as Sheriff of Dumfries and Galloway from 1927 until his death in 1939.
On 18 August 1903 Caroline Elsie Johnstone-Douglas (d. 1969), the sixth daughter of Arthur Johnstone-Douglas of Lockerbie (the eldest son of Robert Johnstone-Douglas and Lady Jane Mary Margaret Douglas, a younger daughter of Charles Douglas, 6th Marquess of Queensberry).[5] Together, they were the parents of two sons and three daughters:[6]
Lord Kinross died on 28 July 1939 and was succeeded in the barony by his eldest son, Patrick. His widow, Lady Kinross, died on 18 February 1969.
Through his son David, he was the grandfather of Christopher Patrick Balfour, 5th Baron Kinross (b. 1949).[8]