Stein Olav Bjortomt (pronounced Bortom) (born 13 December 1978 in Eastbourne) is an English international quiz player, four-time world champion (2003, 2015, 2018, 2019) and three time individual European champion (2010, 2014, 2015). He is the star player of the world's most successful quizzing clubs, Broken Hearts, with which he has won several European championships. He writes questions for University Challenge and The Chase.