| Sir Archibald Mitchelson | |
| Birth Date: | 1 April 1878 |
| Nationality: | British |
| Occupation: | Investment banker |
Sir Archibald Mitchelson, 1st Baronet (1 April 1878 – 30 December 1945) was a British investment banker.
He was chairman of Mitchelson Partners Ltd, as well as D. Davis & Sons Ltd, the shipbuilders J. Samuel White & Co Ltd, Old Silkstone Collieries Ltd, Admiralty Collieries Ltd, North's Navigation Collieries Ltd, Wharncliffe Collieries Ltd, Yorkshire Collieries Ltd, Great Universal Stores Ltd, Anglo-Continental Guano Works Ltd, Pangnga River Tin Concessions Ltd, Genatosan Ltd, and Kamunting Tin Dredging Ltd. He was also president of Porcupine-Davidson Gold Mines Ltd of Ontario and a director of a number of other companies.
He was created a baronet in the 1920 Birthday Honours.