Flemming Knudsen (born 31 May 1946) is a Danish politician and former mayor from Aarhus.
He was a member of Aarhus City Council between 1986 and 2009 and the mayor of Aarhus between 1997 and 2001.
In 2009 he was elected for the council of the Central Denmark Region where he became a member of the business Committee.
Flemming Knudsen has been involved with many local organizations, especially sports where he has been chairman of a local handball chapter between 1972–1980.