Angus Macdonell of Collachie (died October 8, 1804) was a lawyer and political figure in Upper Canada.
He was born in Inverness-shire, Scotland, the son of Allan McDonell and brother of Alexander Macdonell of Collachie, and came to the estate of William Johnson in the Mohawk Valley of New York in 1773 as part of a large emigration by members of the MacDonell clan.
He left that area at the beginning of the American Revolution and was educated in Montreal and Quebec City.
When Henry Allcock's election was contested, he ran in an 1801 by-election in Durham, Simcoe & 1st York and won, defeating John Small, clerk of the Executive Council.
[1] In October 1804, he was en route to a trial aboard HMS Speedy where he would defend a native person charged with murder.