Mattea Roach (born October 26, 1998) is a Canadian tutor who held a 23-game winning streak on the game show Jeopardy! from April 5, 2022, to May 6, 2022. Roach was the most successful Canadian to play Jeopardy! and is placed in fifth for all-time regular season wins. She won US$560,983 throughout her run, getting the correct response to 93 per cent of buzzed-in clues. With her streak, Roach qualified for her season's Tournament of Champions.