| Marcel van Hattem | |
| Office: | Federal Deputy |
| Term Start: | 1 February 2019 |
| Constituency: | Rio Grande do Sul |
| Office1: | Chamber NOVO Leader |
| Term Start1: | 1 February 2019 |
| Term End1: | 3 February 2020 |
| Successor1: | Paulo Ganime |
| Office2: | State Deputy |
| Term Start2: | 10 February 2015 |
| Term End2: | 27 February 2018 |
| Constituency2: | Rio Grande do Sul |
| Office3: | Councillor |
| Term Start3: | 1 January 2005 |
| Term End3: | 1 January 2009 |
| Constituency3: | Dois Irmãos |
| Birth Date: | 11 August 1985 |
| Birth Place: | Dois Irmãos, Rio Grande do Sul, Brazil |
| Party: | NOVO (2018–present) |
| Otherparty: | PP (2004−2018) |
| Alma Mater: | Federal University of Rio Grande do Sul Leiden University Aarhus University |
| Website: | http://www.marcelvanhattem.com.br |
Marcel van Hattem (born 8 November 1985) is a Brazilian political scientist, journalist, international relations consultant and politician. He currently serves in Brazil's Chamber of Deputies and is known for his conservative views.[1]
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