The soprano Sonia Theodoridou was born in Veria, Greece. She has studied at the Greek National Conservatory “Manolis Kalomiris” in Mrs. Papalexopoulou class where she was graduated with distinction as well as an “Excellent and Distinguished Performance” award. She was awarded the “Maria Callas” scholarship which enabled her to study at the Cologne Musical Academy and later on in London with Vera Rosza. She also specialised in the German lieder repertoire with Elisabeth Scharwarzkopf.
Sonia Theodoridou has appeared in the most important lyric theatres of Europe including Frankfurt Oper, Berlin Staatsoper unten den Linden, Deutsche Opera Berlin, Staatsoper Hamburg, Münich National Theatre, National Theatre Stuttgart, Théâtre Royal de la Monnaie – Bruxelles, Théâtre Chatelet de Paris, Teatro Communale di Firenze, Teatro La Fenice di Venezia, Theatre Basel, Opera de Lyon, Opera de Montpellier, Festspiele Schwetzingen, Maifestspiele Wiesbaden, Amsterdam, Rotterdam, New York, Salt Lake City, Salzburg, Opera House Budapest, Vienna, Athens Concert Hall, Thessaloniki Concert Hall, Herodus Atticus Theatre, Ancient Theatre of Epidaurus, Ancient Theatre of Delphi, etc.
As a soloist she has performed numerous concerts and song recitals in Cologne (Kölner Philharmonie), Budapest (Franz Liszt Academy), Italy (Reggio Emilia), Israel (Tel Aviv Philharmonie), Lisbon (Colosseum), Tokyo, Frankfurt (Alte Oper), Munich (Gasteig) and has collaborated with famous conductors like: Wolfgang Sawallisch, Zubin Mehta, Sir Neville Mariner, Antonio Pappano, Rene Jacobs, Christoph von Dohnanyi, Gerd Albrecht, Garry Bertini, Ivan Fischer, Marcello Viotti, Helmut Rilling, Andras Schiff, Frans Bruggen with the Orchestra of the Age of the Enlightenment, Concerto Köln, Vienna Philharmonie and others. Her classical repertoire includes some of the most important opera roles as: Fiordiligi (Cosi fan tutte), Elvira (Don Giovanni), Pamina (Zauberfloete), Alcina (Alcina), Violetta (La Traviata), Gilda (Il Rigoletto), Angelica (Suor Angelica), Mimi (La Boheme), Euridice (Gluck’s Orfeo ed Euridice), Salud (La vida breve), Fiorilla (Il Turco in Italia), Corinna (Il viaggio a Reims), Giulietta (I Capuletti e i Montecchi), Maria Stuarda (Maria Stuarda), Cleopatra (Giulio Cesare), Jenny (Mahagonny), Santuzza (Cavalleria Rusticana) etc. She has released two opera CDs, the Cavalli’s “La Calisto”(Harmonia Mundi) and Pericles Koukos “Conrois and his copies”. Also the CDs “Sonia Theodoridou encounters Manos Hadjidakis” (Seirios , “Recital” (Seirios), Yannis Markopoulos “Renaissance” (Kinesis), Thanos Mikroutsikos “Warna” (Arcardia), Charis Persides “Storiae d’ Amor” (Eros), Arie Antiche (Legend Classics), Sonia Theodoridou sings J.Brel (Etcetera).
Since April 2010 she is Singing Professor  in the University of Fine Arts in Berlin (Udk).