Ruben Blommaert (born 5 March 1992) is a Belgian-born German pair skater.
He currently competes with Elena Pavlova.
He also holds Belgian citizenship and competed for Belgium in single skating until 2010.
He began representing Germany after teaming up with Annabelle Prölß to compete in pairs.
They won the 2013 Cup of Nice and 2013 German national title.
He and his next partner, Mari Vartmann, won four ISU Challenger Series medals and the 2015 Cup of Nice.
With Annika Hocke, he won silver medals at the 2017 CS Minsk-Arena Ice Star and 2017 International Cup of Nice and competed at the 2018 Winter Olympics.