Alexander Lindsay, 2nd Lord Spynie (died March 1646) was a Scottish nobleman and soldier of fortune.
He was the eldest son of Alexander Lindsay, 1st Lord Spynie from his wife Jean Lyon.
However, after Spynie came of age, he agreed to waive his right of prosecution, when Lindsay of Edzell, the murderer, affirmed on oath that the slaughter was accidental.
Having raised a regiment of three thousand foot for King Christian IV of Denmark-Norway, he served with distinction in both Denmark and Germany.
Christian made him Governor General of the eastern Danish provinces of Skåne, Halland and Blekinge.
The Scots and their allies in the garrison were eventually relieved by Sir Alexander Leslie who was made governor of the city.