| Marleen Vanderpoorten | |
| Office: | Speaker of the Flemish Parliament |
| Term Start: | 13 July 2006 |
| Term End: | 13 July 2009 |
| Predecessor: | Norbert De Batselier |
| Successor: | Jan Peumans |
| Birth Date: | 21 July 1954 |
| Birth Place: | Lier, Belgium |
| Party: | Open Flemish Liberals and Democrats |
| Alma Mater: | University of Ghent |
Marleen Caroline Valère Vanderpoorten (born 21 July 1954) is a Belgian politician from Flanders and member of the Flemish Liberals and Democrats (VLD). She is the daughter of Herman Vanderpoorten and granddaughter of Arthur Vanderpoorten. She obtained a degree in history from the University of Ghent (Ghent, Belgium).
From 1999 to 2004 she was the Minister of Education in the Flemish Government. On 12 July 2006 she succeeded Norbert De Batselier as President of the Flemish Parliament, and on 13 July 2009 Jan Peumans succeeded her.