Roger Lennart Palmgren (born 11 March 1963) is a Swedish football manager, active primarily in Africa.
Palmgren briefly managed Sierra Leone in 1996, and declared interest in the job again when it became available in 2002.
He was manager of Swedish side Vasalunds IF from 2003 to 2004. He was then appointed manager of Rwanda in August 2004, before being sacked in November 2005.
He also managed Nigerian club side Kwara United for the 2006-07 season.
After coaching South African club side Thanda Royal Zulu, Palmgren was appointed Director of Sport of AmaZulu in December 2009.
On 19 September 2011, Palmgren was named to succeed Manqoba Mngqithi as the head coach of AmaZulu. He was sacked by AmaZulu on 26 November 2012 after a poor start to the season.
He was appointed manager of the Namibian national team in May 2013. He resigned from the position in June 2013 due to threats made against his family.
In June 2013, he became an assistant coach at Chinese Super League side Guangzhou R&F.