Julien Mark Wiener (born 1 May 1955 in Melbourne, Victoria) is a former Australian cricketer who played in six Tests and seven one-day internationals from 1979 to 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.