Marin Cazacu studied the cello at the Dinu Lipatti Music Lyceum in Bucharest with professor Ion Urcan, and afterwards at the Ciprian Porumbescu State Conservatoire with professors Serafim Antropov and Aurel Niculescu. He improved his musical skills in Weimar with professor Mezö Lászlo. Marin Cazacu is a laureate of the international competitions held in Geneva, Markneukirchen, Leipzig, Bologna, Belgrade.
Since 1983, he has been a soloist of the George Enescu Philharmonic and has carried out an intense activity both in Romania and all over Europe, Asia and the two Americas, under the baton of a number of outstanding conductors: Ghennadi Rojdestvenski, Lu Jia,, Cristian Mandeal, Horia Andreescu, Antoni Ros Marba, Mendi Rodan, Misha Katz, Jean Périsson. He also performed as a member of different chamber music ensembles in the company of prestigious artists such as Vladimir Orlov, Valentin Gheorghiu, Mihaela Martin, Mirel Iancovici, Ilia Grubert, Jeremy Menuhin. Moreover, he is a member of the Pro Arte Trio and has contributed to the Voces Quartet.
Starting 1992, he has also worked as a professor at the Bucharest National University of Music. In 1998, he founded the Cellissimo Quartet together with Alexandra Guţu, Răzvan Suma and Olga Mănescu.
In 1999, Marin Cazacu set up the International Festival Enescu and the music of the world held every summer in Sinaia on the eve of great musician’s birthday (August 19th, 1881).
In 2004, he was granted the Meritul Cultural (Cultural Merit) Order with the Chevalier degree, while in 2006, he obtained the title of Doctor of Music with Summa cum laude, for the thesis entitled Cello concertos in the Romanian musical creation from Constantin Dimitrescu to Pascal Bentoiu.
Marin Cazacu plays a Lorenzo Ventapane cello (1820).