Rob "Robbie" Cordemans (born October 31, 1974 in Schiedam) is a Dutch baseball player.
He bats and throws righthanded.
Cordemans is best known for representing the Dutch national team at the Olympics and other international competitions.
He has pitched in 107 games in his career in the Dutch Major League through 2015, and had a record of 63-12 with an ERA of 1.00.He attended Indian River State College, where he was the 1997 Florida Junior College pitcher of the year, but he was not drafted out of college.
He is a finesse pitcher, and he throws a mid- to upper-80s fastball and an upper-70s changeup.
He played for Team Netherlands in the 2019 European Baseball Championship, and competed for it at the Africa/Europe 2020 Olympic Qualification tournament, in Italy in September 2019.