Timmy Pettersson is a Swedish defenseman on Djurgardens IF.
Pettersson has played in the Elitserien since 1996, when he joined Frolunda HC. He played 6 seasons with Frolunda, scoring 14 points with the team in 2001-02. The following season, he joined HV71, where he played 2 years before signing with Sodertalje SK. In 2006, he signed with Djurgardens, where he turned in the best season of his career in 2006-07, scoring 22 points and recording 62 penalty minutes. 2009-10 is his fourth season with Djurgardens.