Matīss is a Latvian given name and surname. It is the Latvian form of Matthew. Matīss was 46 of the top 100 baby boy names in Latvia in 2020, falling from 33 in 2015 and 25 from 2000 to 2010.1 People with the name include:
- Matīss Akuraters (born 1982), Latvian percussionist
- Matīss Kivlenieks (1996–2021), Latvian ice hockey goaltender
- Matīss Burģis (born 1989), Latvian table tennis player
- Matīss Kulačkovskis (born 1997), Latvian basketball player
- Anrijs Matīss (born 1973), Latvian politician and former Minister for Transport of Latvia