| Lies van Aelst | |
| Office1: | Member of the Senate |
| Term Start1: | 13 February 2024 |
| Predecessor1: | Tiny Kox |
| Office2: | Member of the Provincial Council of South Holland |
| Term Start2: | 15 March 2007 |
| Term End2: | 6 March 2024 |
| Office3: | Member of the Gorinchem Municipal Council |
| Term Start3: | April 2017 |
| Term End3: | March 2018 |
| Birth Name: | Lies den Uijl |
| Birth Date: | 1 December 1988 |
| Birth Place: | Gorinchem, Netherlands |
| Party: | Socialist Party |
| Alma Mater: | Erasmus University Rotterdam |
| Occupation: | Politician |
R. "Lies" van Aelst-den Uijl (pronounced as /nl/; born 1 December 1988) is a Dutch politician of the Socialist Party (SP).
Van Aelst was born in Gorinchem in 1988, and she attended the Merewade College secondary school between 2001 and 2007. She subsequently studied to become Dutch language teacher at the Rotterdam University of Applied Sciences before switching to history at the Erasmus University Rotterdam in 2009. She obtained her bachelor's degree in 2009, and she completed a research master in early modern intellectual history in 2016.[1]
She became a member of the Provincial Council of South Holland in March 2007 on behalf of the SP. Van Aelst also served on the Gorinchem Municipal Council between April 2017 and March 2018.[1] She left the provincial council in early 2024 to became a member of the Senate following the resignation of Tiny Kox. Van Aelst was sworn in on 13 February.[1] [2]
She was married and lived in Gorinchem as of 2024.[1]