Donald Aeneas MacDonell (July 31, 1794 – March 11, 1879) was a soldier and political figure in Upper Canada.
He was born in Charlottenburgh Township in Upper Canada in 1794, the son of Miles Macdonell, and studied with John Strachan in Cornwall.
He served in the British Army during the War of 1812, reaching the rank of lieutenant.
In 1834, he was appointed justice of the peace for the Eastern District and was elected to the Legislative Assembly of Upper Canada; he was reelected in 1836 but ran unsuccessfully for a seat in the Legislative Assembly of the Province of Canada in 1841.
He also led an expedition to Beauharnois during the Lower Canada Rebellion.