Alan Plantagenet Stewart, 10th Earl of Galloway, KT, DL, JP (21 October 1835 – 7 February 1901), styled Lord Garlies until 1873, was a British peer and politician.

[3] He was also Lord High Commissioner to the General Assembly of the Church of Scotland from 1876 to 1877 and a justice of the peace and deputy lieutenant for Kirkcudbrightshire and Wigtownshire.

Their daughter, Helen Stewart, married Neo-Jacobite Walter Clifford Mellor.

[5] Lord Galloway died in February 1901, aged 65, and was succeeded in the earldom by his younger brother, Randolph.

On 14 October 1889, The Earl of Galloway appeared in Dumfries Sheriff Court on a charge of indecent behaviour towards a young girl.