Julien Mark Wiener (born 1 May 1955) is a former Australian cricketer who played in six Test matches and seven One Day Internationals in 1979 and 1980. A right-handed opening batsman and a very occasional off spin bowler, until Michael Klinger's debut he was the only known Jewish Australian to represent his country at cricket. A tall man, he was known for batting bare-headed showing his blonde hair.