Sir Archibald Keppel Macdonald, 3rd Baronet (15 October 1820 – 28 March 1901) was an English first-class cricketer and British Army officer.
The son of Sir James Macdonald and Lady Sophia Keppel, he was born at London in October 1820.
Macdonald joined the British Army in November 1839, when he purchased the ranks of ensign and lieutenant in the Royal Scots Fusiliers.
[8] Other duties during his life included being Page of Honour to William IV and equerry to the Duke of Sussex, in addition to being a justice of the peace for both Hampshire and Surrey.
He had no issue with Lady Margaret, but did have an illegitimate son, Archibald Godfrey MacDonald, with Charlotte Chamberlain in 1849.