Mark Roberts (born 12 December 1964) is an English streaker who has run naked during numerous international events. Roberts's streaking began when he saw a news report about a female streaker at a 1993 rugby sevens game in Hong Kong. After a bet in a bar, he exposed himself to the crowd the next day.

Roberts has done this, as of 2024, 583 times in 23 countries, targeting such events as those held at Hamilton Park Racecourse,