Jonas Magnus Thern (born 20 March 1967) is a Swedish football manager who manages Allsvenskan club IFK Värnamo. He is also a former professional player who played as a midfielder. Starting off his career with Malmö FF in 1985, he went on to represent FC Zürich, Benfica, Napoli, Roma, and Rangers before retiring in 1999. A full international between 1987 and 1997, he won 75 caps for the Sweden national team and captained the Sweden side that finished third at the 1994 FIFA World Cup. He also represented his country at the 1988 Summer Olympics, 1990 FIFA World Cup, as well as UEFA Euro 1992. He was the recipient of the 1989 Guldbollen as Sweden's best footballer of the year.