John Aldham Robarts (November 2, 1901 – June 18, 1991) was a prominent Canadian Baháʼí. He was born in 1901 in Waterloo, Ontario, to Aldham Wilson Robarts and Rachel Mary Montgomery-Campbell. His sister was Marjorie Campbell Robarts, who survived the sinking of the Allan linerRMS Hesperian in September 1915.