Roger Ljung (born 8 January 1966) is a Swedish former footballer who played as a left back.
In a ten-year professional career he played, other than in his country, in Switzerland, Austria, Turkey and Germany, representing six teams, mainly Malmö and Admira Wacker.
A Swedish international on nearly 60 occasions, Ljung represented the country in two World Cups – helping to a third-place finish in 1994 – and Euro 1992.