Born in Hamburg he studied drama and singing in his hometown. Initially engaged by Boy Gobert as an actor at the Thalia Theater, he took the step to the opera stage in 1975.
He worked from 1980 as freelancer in youthful heroic tenor and character roles.
From 1983-1997 engagements at the Bavarian State Opera Munich, in Hamburg, Berlin, Vienna, Geneva. Collaboration with the directors John Dew, Günther Krämer, Johannes Schaaf, Gottfried Pilz, Pierre Audi and the conductors Valery Gergiev, Wolfgang Sawallisch, Ralf Weikert, Gerd Albrecht and others. Since 1998, Ronald Pries has been working as a department head of the singing classes at the Kärntner Landeskonservatorium and as the director of the opera studio. Together with Michael Weger, he created the department for acting at the KONSERVATORIUM in 2006 and also from 2006 to 2010. He has also been Director of the HEUNBURG THEATER in Southern Carinthia since 2010.