Diana Rohnfelder was born in Munich. She completed her junior studies at the Musikhochschule München and studied with Lyndon Watts in Bern after graduating from high school in 2011. This was followed by master's studies with Tobias Pelkner in Detmold, which she completed with excellent results in 2017. She is currently studying there in the concert exam. Various master classes with Sergio Azzolini, Ole Kristian T. Dahl, Dag Jensen and Klaus Thunemann, among others, complemented her education. The two contrabassoon teachers Gernot Friedrich and Stephan Krings shaped her contrabassoon playing.
For 2018, the young musician was awarded the music scholarship of the Märkische Kulturkonferenz (MKK). Among other prizes and awards, she is a prizewinner of the 6th International Richard Wagner Young Musicians Competition.
After Diana Rohnfelder gained her first orchestral experience in the Junge Deutsche Philharmonie, the Swiss Youth Symphony Orchestra and as an academist in the Orff Academy of the Munich Radio Orchestra, a temporary engagement as principal contrabassoonist led her to the Düsseldorf Symphony Orchestra in the 2015/16 season. Since 2016 Diana Rohnfelder has first played as 2nd bassoonist and since 2018 as contrabassoonist in the Gürzenich Orchestra Cologne.