Dionyssis Mallouhos was born in Athens, Greece in 1963.
He graduated from the «Conservatory of Athens» in 1987 under the guidance of Georges Arvanitakis. As is customary in Greece, he has also pursued university level studies in non-musical fields and is a diplomate of the Greek National Polytechnic University with a degree in Chemical Engineering.
With scholarship and financial support from the «Alexander S. Onassis» and «Bakalas» foundations, he studied at the Ferenc Liszt Academy in Budapest (1988-91) with Istvan Gulyas and Màrta Gulyas.
He has performed many times in the Megaron of Music, Greece's finest concert hall and in many other concert halls in Athens and other Greek cities. He has given as well concerts and recitals of chamber music in Budapest, Estergom, Monte Carlo, Paris, Berlin, New York, Atlanta, Nashville, Indianapolis, at the Festival of Bevagna and in «Villa Reale» of Monza in Italy. In 1992, he gave a special concert in Athens in honor of the Steinway & Sons company's 500,000th piano.
As a soloist he has appeared with the National Orchestra of Athens, the "Kamerata" Orchestra of the Friends of Music, the Symphony Orchestra of the City of Thessaloniki, the National Youth Orchestra of Greece, the Symphony Orchestra of the City of Athens, the Chamber Orchestra of the City of Athens and the Hungarian «Franz Liszt» Chamber Orchestra (ancient Herod Atticus theater, as part of the Athens Festival '93).
He has recorded solo piano and chamber music works for the Greek T.V. and radio as well as on record albums and CDs (EMI, SONY etc.), concentrating primarily on works by Greek composers.
Since 2003, he is the producer of an everyday radio program in Greece’s only classical radio station «Third Program» of Greek Radio and he is a regular editor at the «Classical Music Review» magazine.
He is teaching piano at the Conservatory of Athens and the Attikon Conservatory and he gives regularly masterclasses in several cities around Greece. Since August 2009, he holds the position of the director in Municipal Conservatory of Kalamata (southern Greece).