Henry Gray completed the Programme de common law en français at the University of Ottawa, where he was on the Dean’s Honour List. He received several law school awards, including the Prize for Excellence in Oral Advocacy at the Gowling WLG 1L Moot Court Competition and the Gowling WLG Entrance Scholarship. He also placed third out of 32 appellants at the 2022 Donald G.H. Bowman National Tax Moot Competition.